Technique used if a girl lets you finger her in the ass, but won't let you have anal sex with her. Most effective when you can tell that she is curious to try it and turned on by her own naughty thoughts, but scared that it will hurt. Sneaking it in occurs after you have successfully put one, then two fingers in her ass. This is when you quickly make the switch, pulling the two fingers out of her ass and sneaking your cock in there instead without her noticing the switch until its too late. This is when she will most likely just accept that she has a cock in her ass and just keep taking it.
Last night I ended up sneaking it in on this chick, and she took it like a champ after the instant realization that she was no longer an anal virgin.
by Quagmire_G December 12, 2009
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The 1936 equivilant of The Cheat.

A lively fellow who is really quite unique. Small, smart and yellow with a rodent-like phisique. Doesn't play the cello and never gets to speak. Strong Bad's Leporello.

A dapper swindler out of Tammany hall who got what's for from Boss Tweed. Once did the holly-golly on the Panama Canal. A jaunty jacknapes with moxie and pizazz. Drinks bootleg hooch and listens to the jazz. Captures all the clever girls affections and made off with my Fluffy Puff confections.

He's dasterdly, loves catastrophy, his schemes are masterly, takes tea at half past three. Dropped the Homestar Runner from his flying machine and put a bengal tiger in the Kaizer's latrine.

The sneak, I showed him what's for!
by Vit June 25, 2003
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comes from sneakers so it means shoes
yo ma sneaks aint clean
by olly June 2, 2004
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secretly hooking up wth someone. usually because you're cheating on you bf/gf
Example 1
Guy: Hey girl, you wanna sneak?

Girl: Don't you have a girlfriend?

Guy: Yeah, so? Thats why we are gonna sneak.

Girl: Okay. Let's do it.

Example 2
Guy: Hey girl, you wanna sneak?

Girl: You're a senior and I'm a freshman. I don't think that would be good.

Guy: That's why we are gonna sneak.

Girl: Oh, sure!
by SneakGirl December 19, 2013
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something not exactly noticed first hand, usually noticed after quite sometime of knowing someone or something.
Yo man, your sister is kinda cute on the sneak.

by Nikeeta July 6, 2006
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the correct past-tense of sneak
note: this word looks and sounds compleatly retarded, use in moderate to no proportions
i sneaked into the pantry to get some vegimite but vegimite sucks so I should be shot
by Lion-mousePAD July 26, 2006
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