Top definition
When a man places beer straight into his rectum (through either a beer bottle, funnel, etc.), stands up, and has the beer drank straight out of his anus by his partner.

Advanced Move: Perform the Dirty Williams with a modified reach-around, treating the penis like a olde timey water well pump and allowing the release of beer upon each individual pump.
Jason was walking pretty funny last night. He must have received a skilled Dirty Williams.
by whitechocolate69 April 10, 2011
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2
Putting your finger into your partners rectum and then smelling it and licking it.
Casey gave Will a dirty Williams!!
by Nothing but real June 11, 2008
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3
When a man wipes his semen on to his top lip to make a moustache
russ gave himself a dirty william
by Doomsley October 07, 2016
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