The act of two people of the same sex fucking. Also known as gay sex.
Rob is gucking Jack up the ass right now. He'll come to the phone in a minute.
by JohnDoeSmith December 31, 2010
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The action of an erect penis being stimulated by deep-throat. Derived from the sound that is made, "Guck, guck, guck, guck".
Male 1 - "That girl totally blew me last night."
Male 2 - "I know, I could hear her gucking from my room"

Male - "Come on babe, suck this fat meat sword"
Female - "Guck, guck, guck, guck, guck, guck"
Male - "Oh yeah, here is comes"
Female - "Guck, guck, guck, guuuccckkk....."
by Gucking May 21, 2014
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When you do a typo. For exemple, when you want to write fuck but you do a typo and write guck. Because of this typo (that I make regularely) you call any typo a guck.
(chatting on MSN)

person 1: sorry... but i cant make it to your party

person 2: (very frustrated) what the guck!!!!!!!!

person 1: guck?????

person 2: fuck* sry bout that

person 1: dnt worry bout it bud i guck a lot 2

person 1: dont* lol
by kicknickinthenet November 19, 2007
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Only the best of blowjobs that end with the most orgasmic finish
Kyle: “dude jade gave me that guck guck 9000 last night and damnnn

Or
Lexi: “I gave Kyle that guck guck 9000 last night and he couldn’t even move”
by Milkycunt69 October 23, 2019
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a very interesting word it means fuck but it corrected to guck 🤬🤬
by notpogglings January 11, 2022
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