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3.
A female dog that does not have a father.
Poor bitch bastard - Muffy never knew her father he was too busy breeding.
by jksurfer February 05, 2009
 
1.
Combined with both bitch and bastard. It referrs to an idiot or moron.

You can use it for both sexes. Also for a noun.
"Damn you, you bitch-bastard!"

"YOU stupid bitch-bastard work!"
by Maddie Jean October 04, 2005
 
2.
A particularly spiteful male, possibly but not necessarily gay.
"What has that bitch bastard been saying about me?"
by Prairiefire May 21, 2010