The act of using facebook to spy on everyone and everything. all the time. rain or shine.
"did you know that robby is in a relationship with sara?"
"yeah, i was totally just creepin' on that"
by don'tstopbelievin May 29, 2009
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WHEN YOU SLIP IN FROM BEHIND FOR SEX IN BED WHEN THE OTHER PERSON IS NOT EXPECTING IT
I WAS LAYING THERE AND MY HUSBAND WAS TRYING TO CREEP FROM BEHIND BECAUSE I WAS SLEEPING IN THE NUDE.

I LIKE CREEPIN UP BEHIND MY WIFE/ GIRLFRIEND TO SLIP IT IN HER WHEN SHES NOT EXPECTING IT
by ALEX TREBECA February 20, 2012
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When some really sketch looking fellow (or fella) is being a creeper where they think no one will notice (sadly, they notice).
Posh Spice - yo, do you see that midget over in that dark corner?
Paris Hilton - yup he's a creepin alright
by Not a Creeper March 11, 2009
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When a creepy guy is wearing sweatpants out in public and has an erection.
by Sperz/CM December 7, 2009
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Creepin is a definition of a man, with albinism, who simply sneaks around any Xbox Live party chats he likes without saying any words, no one realises this man is in the party chat. He eavesdrops on conversations to yield information to use against people in future conflicts.
"Wtf Creepin! I didn't even realise you were in the party pal!"
by Arsewipe47 April 10, 2017
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A car that is moving really slow down a street. Used by people either in traffic behind it, or by a pedestrian who believes the driver is a molester/creep.
Damn dude, this guy is creepin' down this street. Beep at him.

Peep this mother fucker creepin' past these kids.
by aliam December 10, 2006
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used to describe aimless or intentional hovering behind or very close to another person to the point of discomfort and anxiety. Also can be used to describe the actions of a person who is lurking nearby but is easily detected by a different person in the vicinity.
*man starts hovering over woman in busy shopping mall*
Woman ---- "Hey, is there a reason why you're CREEPIN'?"

*one man is in his room with the door closed. Second man is tip-toeing slowly just outside the room, trying to be quiet.*
1st man yells from his room ---- "I can hear you CREEPIN'!"
by TranslucentAirlines January 31, 2017
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