1) The act of greeting someone, whether present or not, while one is asleep.
2) The act of sexual advances or inappropriate behavior toward another while one is asleep.
I couldn't sleep last night because my roommate slept walked to my bedroom and began greeping me.
by Cracker_Barrelite May 10, 2010
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• The act of being mischievous or a little bit silly.
• Moving with a purpose, oh what a magnificent purpose.
•When everyone joins in, it is condemned, it is a sin
• Tristan Bongo or Mrs Gonorrhea
Business is like a waltz, business is like a grand dance - he said Greepingly.
by Mrs Gonorrhea March 5, 2023
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A dangerous, powerful entity. A mysterious creature but also, a business man. You may see him at night...... as you are peacefully sitting in your house..... it may lift its claws and attack doors. Witnesses say..... he was seen prowling streets with another entity some claim to be called 'Lewis'
"Have you heard of 'The Greep' ?"

"I saw 'The Greep' the other day.... "
by PU$$YTIGHT May 4, 2023
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A horrible person who is geeky and creepy and, most of all, shit to their friends.
Girl1: Did you see what she just did!
Girl2: Wow, what a greep...
by BeckyK October 14, 2012
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The flow of blood that exits a man's anus (similar to a menstrual flow). It only occurs once in his life time, and it is the defining moment of his manhood. The flow lasts for 2-3 weeks and the suffering transforms a boy to a man.

When compared to a females period, greep is scientifically proven to be worse. Dr.Schlitterbauhn, part time disney world OB GYN, commented, "on a scale of numb hand to two stubbed toes, greep is around the pain level of whale birth".
"Dude, you are such a child."
"Naw, man. I greeped last week. Im a full man now."
"Damn straight you are"

"I accidentally licked my greepage."

"Kill yourself now."
by Disneyworldobgyn November 21, 2013
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a person who is a member of a glee club and tends to be creepy
Wow, that girl in the back of that picture is a greep.

Dang he can sing, but he is still a greep.
by IlOvEgLeEcLuB December 1, 2009
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Noun - A Geeky Creep. A creep whose modus operandi is super geeky (such as the internet).
verb - the act of creeping out in a geeky manner. used in the smae maner as the verb "to creep out"
He was a typical greep. All he ever did was surf the net and create false identities in the hope of finding a hot date. And when he did find someone, he would greep out his victims by spamming their inbox.
by chitsb August 6, 2007
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