a girl who appears pretty from behind but not from the front (origin: Japanese)
That chick in accounting looked totally hot, but turned out to be a bakku-shan, so Monkeyboy can have her.
by Jonnyguano September 26, 2005
A woman who appears attractive, but only when seen from behind.
She's got a nice figure but her face looks like shit... She's a bona fide bakkushan!
by Le Saboteur October 13, 2005
(n.) A girl that is hot from behind, but not from the front.
She's a total bakku-shan, but that's okay, I'm only going to see her from behind.
by rayagan September 26, 2005