Celebrities are really just regular people who are in the limelight a lot. They have their humanity. They have their vulnerabilities - and they talk. Sometimes they say really profound this and other times, not.

RELATED: 10 Stars We Didn't Realise Were Child Actors

Then, there are the phrases they are known for from a film or a phrase they use in real life, repeatedly. Fans of celebrities may know their favorite catchphrases, but there are times when these slip even ardent fans' attention. Here are some iconic celebrity catchphrases used by the rich and famous.

10 "Alright, Alright, Alright" - Matthew McConaughey

This catchphrase comes with a bit of a history. In fact, Matthew has been rocking this catchphrase since 1993.

RELATED: 10 Of The Best Celebrity-Themed Weddings

Yes, he first used it in the film Dazed and Confused. He also used it in the 86th Academy Awards, when he won the award for Best Actor. The simplicity of the phrase and the repetition is somehow effective and this is perhaps why it has stuck - for both the actor and his fans.

9 "Bazinga!" - Sheldon Cooper

The Big Bang Theory, the famous sitcom, was the setting for many iconic catchphrases. One that stands out is "Bazinga!" by Sheldon Cooper, the nerdy yet compelling character who can invent a particle accelerator but struggles to drive an automatic car.

RELATED: 10 Instagram Accounts To Follow To Stay Organized

This is a great catchphrase that anyone can use - and it may not even become outdated. It's also this kind of inventive usage of language that makes fans of The Big Bang Theory love Sheldon so much.

8 "And That's The Way It Is" - Walter Cronkite

The CBS Evening News was the setting for Walter Cronkite's famous, "And that's the way it is" catchphrase.

RELATED: 10 Hollywood Romances We Forgot Ever Existed

The talented presenter famously ended each evening's broadcast with this simple and effective catchphrase and it was at this point that viewers new the news was complete.

7 Say It With Emojis - Ariana Grande

Ariana Grande just loves emojis and she uses them, more often than not, to say how she feels. Emojis have become her special catchphrase, one could say, and her way to communicate best with fans.

Usually, she's all about hearts, but the occasional cloud or lightning bolt do appear on her Twitter account. One could hardly blame Ariana for making use of the user-friendly emoji selection. After all, some things simply can't be put into words, and nothing says it better than a well-timed, well-selected emoji.

6 "That's Hot" - Paris Hilton

Some celebrity's catchphrases are so simple. This can be said for millionaire Paris Hilton's famous line, "That's hot!" The celeb loved it so much, she even had it trademarked.

If something gets a 'That's hot!' remark, it should get fans' attention - in the world according to Paris. The simplicity, inherent confidence, and forthrightness of the statement has caught the attention of those who love Paris and admire her from a distance.

5 "Amazeballs" - Perez Hilton

Not to be confused with Paris Hilton, Perez Hilton has said some iconic things that have slipped quite effortlessly into most conversations.

"Amazeballs" is just one of these phrases from Perez that has stuck. For a few years, this iconic word found it's way into all kinds of social media conversations and posts.

4 "Auf Wiedersehen!" - Heidi Klum

Heidi doesn't just enter a room with style, she says goodbye to those axed from the Project Runway competition in her first language, specifically with an "Auf wiedersehen!"

This is her trademark goodbye and it sounds just as chic and exclusive as the model herself. One can consider this line as a great way to make one's own exit - just make sure the pronunciation is correct!

3 "Aha moment!" - Oprah Winfrey

Fans of Oprah Winfrey will know how often she has said that she's having an "Aha moment!" throughout her show. Fans expect that she'll continue to deliver this catchphrase in her new show that was announced at the end of July.

This is second to her other favorite line, "Look under your chair!" (a great line to hear if you are in her studio audience). The catchphrase 'Aha moment!' was used so often by the queen of talk shows that eventually the phrase itself was recognised as an official phrase and put in some dictionaries. Now that's a catchphrase to latch on to.

2 "Another One" - DJ Khaled

This phrase has been used many times by the talented musician. In fact, some have argued his musical career has been built on catchphrases, this being just one of them.

Still, without talent and the personality of the person himself, audiences would not love the man enough to even want to use his catchphrase. Bring them on, DJ Khaled.

1 "Winning" - Charlie Sheen

This prolific actor who has lost as much as he has won has, in fact, 22 catchphrases under trademark and "winning" is just one of them. Others include "Vatican assassin," "Adonis DNA" and "tiger blood."

Some of his catchphrases are pretty much self-explanatory. Others leave one questioning their meaning out of context. Still, if one is a Charlie fan, they are handy to know, unique and colorful and would make a refreshing addition to any conversation.

NEXT: How Long Common Household Make-Up Items Last (& How To Tell If They Are Expired)