look up any word, like b4nny:
 
1.
An adjective describing the extreme and bitter toughness of certain activities. Bitches be hard.
Nick: "Yo Tommy, how was dat chem test?"
Tommy: "That shit was fucking bitch hard"
Nick: "Aww shit"
by tomdawg August 30, 2012
 
2.
Not necessarily "rock hard" but hard enough for the bitch.
It pertains to either something with difficulty or the male genitals/penis.
-"That test was bitch-hard!"
-"Dude my dick is bitch-hard, shit man."
by AsianAlmighty January 10, 2014