Top Definition
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 30, 2009

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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 20, 2014

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Gay fucking
Those two dudes are gucking in the next room.

Also:

Go guck yourself!
by Jameoh April 16, 2010

The Urban Dictionary Mug

Lotsa space for your liquids.

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The Urban Dictionary Mug

Lotsa space for your liquids.

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The Urban Dictionary Mug

Your favorite word on a white mug.

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The Urban Dictionary Mug

One side has the word, one side has the definition. Microwave and dishwasher safe. Lotsa space for your liquids.

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The Urban Dictionary T-Shirt

Soft and offensive. Just like you.

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The Urban Dictionary T-Shirt

Smooth, soft, slim fit American Apparel shirt. Custom printed. 100% fine jersey cotton, except for heather grey (90% cotton).

Buy the t-shirt