Comparative form of bitchy: more bitchy(adjective)
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Use "bitchier" in a sentence
"Bigger, spanglier and bitchier - BBC's sequined cash cow goes on the road"
"And if nothing else, at least it proves that Winston is far bitchier than any female dog."
"Now with Jane back, and news that The CW has ordered more Melrose episodes and Heather Locklear is returning, I expect this show to keep getting better, and hopefully bitchier."