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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First of all 'Guck' does not mean to "fuck your mom" or whatever they put. It means dirty ok DIRTY
Damn these shoes are guck
by Yeeeeaaaaahhhgh June 30, 2014
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guck (n) / Goo that provokes one to express the word "yuck" when come to contact with it.
Anyone : "Eww, I just stepped in some guck. Yuck!"
by tarealist September 18, 2013
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To hardcore fuck, usually in your moms ass.
Ey yo nigga, I gucked that dudes mom so hard!
by SkeezyWasHere March 14, 2010
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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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