1 definition by barry billet street

Consists of dropping a shot of Jagermeister into a pint of Guinness, the participant must then down the resulting 'Guinness Bomb' in one. Much like it's more popular cousin the Jager Bomb, but much more potent.
Did you see that Barry down a Guinness Bomb last night?
by barry billet street January 7, 2012
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