a
stupid person tht is just a plain fuck up and has no life what so ever. most dumbfucks are reading this now because someone called them this and they dont know
what the hell it means. well now u know dumbfuck.
another meaning is to not know who to fuck or have
intercourse because of that one day you skipped sex ed class because you were grossed out so now your holding ur penis in your hand wondering where.to put it in the women. since your a dumbfuck you go for the armpit.
1- that guy
over there is just a plain dumbfuck.
2- girl 1: how was u and your date last night
wink winkgirl2: terrible afterwarda we went to have sex.and he stuck his penis in my armpit
trying to dumbfuck.
girl 1: what a dumbfuck