to touch some ones butt or breast by bumbing in to them or walking to close and actting like you didnt mean it but you really wanted to .
by big d 12 October 25, 2003

by cockblocker37 March 21, 2009

when someone/something does something sneakily to fuck up your day or plans - usually friends doing it to prank you, but can be otherwise.
In Halo, when someone assassinates you from behind - they are a sneak fuck... especially when said person is on your team.
by ashpagrass December 21, 2010

To try to have sex with a woman while she is sleeping. Usually this is done to a girlfriend or wife. Otherwise some of the more conservative people could profile this act as rape.
Guy 1: Hey man what are you doing?
Guy 2: Nothing just at my house and my girl is asleep and I really need to bust a nut.
Guy 1: I recommend you sneak one in.
Guy 2: Capital idea!
Guy 2: Nothing just at my house and my girl is asleep and I really need to bust a nut.
Guy 1: I recommend you sneak one in.
Guy 2: Capital idea!
by Senor Ringpiece August 18, 2009

a person who appears normal, but is really considered a "freak" to a norm or to a group of people; an abnormal person; a weird person
The kids at my school call me a freak in the sneak. People just don't understand what is like to be me. I'd give anything to be normal.
by penis-mon September 29, 2009

A style of Weed smoking, as in finding a small room like a closet and carelessly beginning to smoke.
Hey, did you hear that Danny pulled a KKP sneak over at his parents house? I heard he almost set his closet on fire.
by Swagger P April 15, 2015

When driving, to make a left turn at an intersection just as the stoplight turns green pulling out in front of the oncoming traffic.
by intlvic April 3, 2011
