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1.
Beergasm: (beer orgasm) The shudder you get when having your first sip of beer. you may also get one with your second sip of beer, otherwise known as a multiple beergasm.
"I just had a beergasm"
by Grassy J. Hammond April 11, 2007
 
2.
When the foam, or "head", of a beer shoots at you upon opening it.
My beer just had a beergasm.
by G. Sherman August 10, 2003
 
3.
The climax a warm or agitated bottle of beer has shortly after the first sip. See Brewkakke
Whoa, It looks like Sam Adams just had a beergasm. Keep your Patriot/Brewers jizz off my mom's sofa.

by luvchowda November 19, 2008