Occurring when a man, lacking in fortitude, continually spends time with a woman already part of a committed relationship without letting his true intentions be known, hoping that the woman will leave her current significant other, allowing the man to SWOOP in.
Nick: Hey, did you hear that Russell is doing the ol' Sneaky Pete?
Aaron: Oh, that's dirty!
by Bat_Man October 26, 2014
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Sneaky Pete. To steal your best mates wife or girlfriend.
Did u here Dave is now dating his best mates wife Linda, he did the old "sneaky Pete".
by Freestylez October 05, 2018
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The term for a man or woman who has a STD but does not inform their one-night-stand until the morning after.
J: "I had a great time last night Erica, and by the way you should get tested"

E: "You're such a Sneaky Pete"
by BKDC October 22, 2009
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Watching a YouTube or Twitch channel, TikTok, or TV show for 20 minutes just to “unwind” and then spending the rest of your day (or weeks) invested in everything that happens.

The difference between this and just becoming “a fan” is the level of commitment. This distinction includes one or more of the following:
Trying to slide into DMs
Ongoing engagement in chats, comments, or fan boards
Creating or consuming fan fiction or sub-Reddit’s.

Buying merchandise or other fan paraphernalia.

Monetarily supporting with a subscription or donation.

Continually sharing updated information with friends or family (who don’t care).
::Oh my gawd! Did you see that new TikTok from (insert personality)?
::Yes! I ended up spending an hour on (insert genre) TikTok and commenting on all of their posts! I also messaged them letting them know how much their message meant!
::IKR? I wasn’t sure if I liked them, but they’re such a Sneaky Pete!
by BourbonBombshell March 27, 2021
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When a guy &/or girl makes a move on someone passed out.
Last night after that chick passed out he tried to sneaky pete her.
by RojoLoco January 23, 2009
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Cheap fortified wine, in particular the type drunk by winos on skid row such as Mad Dog, Night Train, and Thunderbird. Winos often "fortify" wine with other alcohol, including denatured alcohol such as rubbing alcohol and sterno.
But you take that Sneaky Pete 1 stuff they're drinkin' nowadays. That's wors'n anything! Nah .... I would'n touch'a stuff! That Sneaky Pete drives a man crazy! And it ain't nothin' but cheap wine! That's all it is! You know that guy, crazy Mike, who's always comin'in here makin' trouble? He got that way drinkin' that Sneaky Pete stuff! I won't touch it. I wouldn't touch it if you give me all'uh money in the world! I wouldn't touch a drop of it! No sir!
by RevWaldo September 28, 2010
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When you start and finish sex with your partner while they remain asleep.
She was completely out cold last night so I was able to give her the old sneaky pete
by PeteyBoy21 September 24, 2009
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