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An oval bowl usually made of porcelain to wash your hands. However some people tend to use it as a urinal and piss in it on a regular basis.
Please wash your hands in the sink cause god knows where you been puttin them.
by Michael Myers August 08, 2003
SINK - stands for "Single Income No Children"

(similar to DINK)
I hate when a SINK calls parents "breeders."
by C. A. M. December 06, 2008
To make a shot in pool.
"I'm gunna sink sum beer's and chill ou watching the footy."
"I sunk a 700ml Bottle of Bundaberg O.P."
"Make sure you don't sink the 8-ball when your trying that 'hit and hope' shit."
by Diego August 30, 2003
embedding a thrown or melee weapon into a target
excellent! got a sink with my knife!!! pwned!
by Spaz De Kat November 30, 2009
To sinks: The act of sobering up enough during a period of alcohol induced memory loss to realize that a fat chick is performing fellatio to said person, then immediately running out on the blowjob.
"So Dennis, I heard you got a pretty good blowjob from that whale last night."
"No man, I totally sinksed that ho and got out of there quick."
by Marioun Barry January 21, 2008
To bang a dude.
"Yeahhhh I'd sink that"
by derpkerng27 November 11, 2012
A method of inhaling the contents of a bucket bong where, once the mouth has been placed over the end of the bottle, the bottle is pushed down into the water to compress the smoke and get a faster and easier hit.
Go on, sink that bong, geez.
by Saucy August 14, 2003