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1.
A Bitchometer is a meter which the bitchness of a person is rated on.
Guy 1 : " Wow man your sister sure is a bitch."

Guy 2 : " Yea man let's get out our bitchometer"
by The Unknown Of The Unkowns March 03, 2009
 
2.
A mathematical meter that rates how much of a bitch someone is.
Guy 1-Man, she's a perfect 100 on the bitchometer!
Guy 2-I'd say more of a 200.
Guy 1-Hell yeah!
by thedonutbadgerlord May 28, 2012