Adam Sandler and David Spade may seem like two comedic goofballs who just don't like to dress seriously, as they've confirmed on David's show, Lights Out, which airs on Comedy Central. However, the two have been there for each other through thick and thin. They have years of friendship under their belts.

The two are close and surely have many secrets, as most BFFs do. Sometimes, they do share some of their wildest buddy moments with their fans.

Plenty of details about their friendship, from the jokes and the silly moments to their favorite movie-making memories, probably won't shock many of their fans, but many of the details may be more than a little surprising.

Here are some memorable moments.

14 They Met At The Improv In Their Early 20s

Like many comedians, Adam Sandler and David Spade started out doing stage comedy. Many believe they met while on the set of Saturday Night Live, but the two met while they were performing at a club called The Improv. It was at this time that they made many of the lifelong friends that they would repeatedly star in movies with later on.

13 David Was The Bigger Star At First

Adam recalls being starstruck by David's fame when they were young because David had landed a part in Police Academy 4: Citizens on Patrol. It's ironic since Adam is the bigger name today, with a net worth of $420 million, but Adam remembers when David had more fame and cash than he did.

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12 David Was Friends With Rob Schneider First (And Adam Was Friends With Apatow, Also From The Improv)

Rob Schneider has appeared in so many Sandler movies that fans might think they've been buds forever, but Spade and Schneider were friends first, through The Improv. In the early days, Sandler was also friends with Judd Apatow at The Improv, which led to his success in so many films with the director.

11 They Performed On SNL Together In 1990

While Adam and David didn't meet on SNL, they certainly performed there together in the 1990s. Many fans remember their "Gap Girls" skits, where they "cinch 'em!" fondly. The hilarious and energetic Chris Farley sometimes joined them in those performances. David and Adam also made the "Pepper Boy" skit famous together.

10 David Picked Up Adam's Tab For A $9,000 Dinner

David admits that when he found Adam entertaining a group of friends during a birthday party, he had been drinking and wanted to show off. So he picked up Adam's $9,000 dinner bill! The two laughed about it on David's show, saying that their friends couldn't believe it since David isn't usually so generous with the tab like that.

9 David Pranked Him At The Opening Of Uncut Gems

On Lights Out, David revealed another funny story about him and Adam. When he arrived to watch the opening of Uncut Gems, in support of Adam, he texted him, asking where it was, as if he might miss it. He was actually at the premiere but wanted Adam to sweat a little before letting him know that he was there.

8 Adam Made David Get In A Tire During Grown-Ups

It might not surprise fans that Adam is the one constantly goading David into situations that are outside his friend's comfort zone. David says one of the most stressful moments occurred when Adam made him famously get into that tire during the filming of Grown-Ups. This happened while David's stunt double was standing right there.

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7 Adam Likes To Spring Weird Requests On David During Filming

Given that they're such good friends, it's not a shocker when David admits that Adam likes to spring weird requests on him when they are filming movies together. Once, he told David that it would make a scene in Grown-Ups better if David were naked in it. He told his buddy this just minutes before filming.

6 Adam Made David Miss A Flight

David was excited to get a flight home in one of Salma Hayek's private planes when he finished filming Grown-Ups, but Adam made him miss his flight by adding a zip-line scene that Spade would have to film later. David was so incensed that he says he smashed his trailer up over the incident!

5 Adam Produced Their First Movie Collaboration

Fans who remember David Spade's film, Dickie Roberts: Former Child Star, might also know that Adam Sandler produced the movie. This was the pair's first collaboration of many. Since then, they've been seen in movies together, including The Benchwarmers, Grown-Ups, The Do-Over, Hotel Transylvania, and many other projects.

4 They Loved Making The Do-Over Together

While reminiscing about their many movie-making memories together, the guys said that making The Do-Over together was a lot of fun. It was one of the best experiences. When asked about Adam's favorite films featuring David, he pointed at his friend and said, "The Do-Over, baby! Me and you!" David agreed, saying, "That was a blast."

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3 Adam Said David's Role Was A Gift

When David discovered that he was the lead in The Do-Over, he was shocked. He'd expected to be a supporting cast member, as per the usual. Adam made it clear that the role was a present to his buddy, saying, "When I give a gift, I give it all the way." Adam is such a loyal friend.

2 They Both Have Quick Tempers But Get Over Things Quickly

One of the things that might help their friendship last so long is the fact that neither Adam nor David hold grudges. They say that they both have quick tempers but they release some steam and then get over things very quickly. Adam says that his temper is usually bigger than David's, but neither of them tends to stay mad for long.

1 David Impersonates Adam On The Phone Every Time They Talk

David is known to do some funny impersonations of Adam, but fans may not know that he does this almost every time the two talk on the phone! Adam says that when they chat, David always manages to mock his silly voice, which was made famous on Saturday Night Live. Adam says he enjoys people doing impersonations of him.

NEXT: Who's Adam Sandler Close To? A List Of His Celebrity Friends