1 definition by MuscleKitten
A man who is very trendy, bro-like and wears a lot of flannel shirts. Also referred to as a 'trendy lumberjack'
Guy 1: Dude, check out the dude with all the chicks in his flannel.
Guy 2: Yeah, that's Frank. He's such a lumberbro.
Guy 2: Yeah, that's Frank. He's such a lumberbro.
by MuscleKitten November 28, 2010