Meaning "Google the Mother Fucker." Generally used when someone poses a question that can easily be answered with a search using Google's search engine.
<ddunk> But I still can't figure out how tochange nick in Gaim.
<Time> ddunk: GTMF
Adj/Verb. Acronym standing for Granny Tranny Prego Midget Footsex.
First discovered when scientists combined as many fetishes as possible without being farcical.
Dude, that GTPMF porn i watched last night was the bomb!