Someone who is in a committed relationship and breaks the trust of his or her partner by getting physically or emotionally involved with another person. Common forms of cheating include kissing, feeling each other up, vaginal, annal, oral sex and any other contact that involves the lips, hands, and genitals. Emotional cheating invovles forming a close bond with someone of your preferred gender and basically forming a second relationship. This may or may not include physical cheating.
1)Shelly broke up with Rich after she found him making out and feeling up some other girl at a party. He claims he was drunk but she didn't care, she does not tolerate cheating.

2)Mark was always so busy and Amy wasn't getting the attention she wanted from him so she started hanging out with Dave. He was giving her the attention she had wanted from Mark. She may not have realized it but she was emotionally cheating.
by Nathalie D. December 30, 2008
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Forgetting about your girlfriend to go mess around with other girls at homecoming when you are in a commited relationship, knowing quite well she trusts you and loves you with her whole heart then taking that trust and love and take a piss on it. Cheating is anything you wouldn't want your significant other to see, watch, find out about, or do with someone else. Fuck all the cheaters who ever broke someone's heart. If you get cheated on, dump their sorry ass, theres no such thing as a moment of weakness. They dont give a shit about you or your relationship. Even if the girl came on to them, they shouldve said no. They dont love you. They are selfish bastards, and they will do it again no matter what they say. It breaks your heart into a million pieces, you never will trust them or anyone else again, and the pain never goes away. You'll ALWAYS have moments where you think about it and just break down crying, and sometimes you cry yourself to sleep for months.
Travis cheated on his girlfriend Jessie with five girls at his homecoming, that bastard. She deserves better, nobody deserves to be cheated on. Its better to tell the truth than to be caught cheating.
by fUcKtH3cH3eT3rS March 14, 2010
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A fine looking young man. Or an uhhguuhly boouiid. Strong Bad's sidekick and Strong Mad's friend.
"The Cheat is not deaaaaaaaaaaaaaaad, I'm so glad the cheat-- Keep it going guys, keep it going. *runs*"
by Sunbun April 15, 2003
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A furry little thing that was once described by Strongbad as looking '..more like cheese. Or an anvil.' He also has a gold tooth. He is called The Cheat because he helps Strongbad cheat at stuff. His other freinds are Pom Pom and Strongmad. The Cheat cannot speak English.
SB: The Cheat, say something normal, like, er, Douglas.
TC: Mmmah.
SB: Douglas!
TC: Mah Mah.
SB: DOUGLAS!
TC: Mah.
by Adam S., last time I checked. December 3, 2003
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When one person has a significant other and performs any type of intimate acts with another person.
I caught my boyfriend cheating on me with another girl.
by Erin August 14, 2003
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To date, have sex with, or kiss/make out with someone someone else while you are in a relationship. These people who cheat are disrespectful, selfish, fuckboys/sluts, and pretentious.
If you are married, this is sometimes called adultery
E.g. 1) Mike: Hey Dave, hows it going with your girlfriend?

Dave: Broke up with her, she was cheating. There's 5 months i'll never get back.

E.g. 2)Brittany: Ugh, Sally, my boyfriend was cheating on me. We were together for over a freaking year! How could he?
by a fallen star xxx April 17, 2019
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He is a character in the Flash Animation world of homestarrunner.com.

He is a furry yellow creature whose species is basically unknown. And he has his own language that features squeaks and "Meh"s. But he is 1'2" with yellow fur, black spots, and is shaped like a cheese and an anvil.

His best friend is Strong Mad who is at least 6 feet tall with no neck who protects him from larger predators. And he is Strong Bad's lackey, assistant, and sidedick frequently appearing in Strong Bad e-mail. And of course, Strong Bad has kicked him several times before, and he loves to make Flash cartoons on his yellow IMac computer which he tries to win trophies for. But really all his cartoons just feature bad animations of voices of characters from homestarrunner.com and just feature The Cheat being really cool.

He also:
Moves to the beat
Has yellow feet
Gives Strong Bad a hand
Messes up Homestar's plan
Makes out with Marzipan
Looks like Pikachu
Is not the guy from 21 Jump Street

No question he is one of the most popular characters on the website, and some of the fans kind of think of The Cheat as kind of a cuddly teddy bear creature. (Myself not included)

THE END
"Meh!"
"Three trophies for The Cheat!"
"A parade for The Cheat!"
by Tom G. August 3, 2005
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