Top Definition
pack of wild demons, love beer, love fanny and love a good time... arch drinking rivals a.d.b (all de boyz) leaves the town of wicklow easily swayed towards g.m.m due to a.d.b's shit performance on the beer.
hey look at G.M.M, out like demons on the beer

G.M.M free passes all round

glebemount mafia G.M.M
by greenus beanus December 05, 2011

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