A useful instintual tool used by women to determine the size (or lack there of) of nearby man junk. The cousin to the gay-dar.
by frank the wank April 27, 2008

A woman who is very sexually promiscuous. Originates from the idea that said woman's vagina is like a meter for "peters" (penises). Can refer to either the woman or her vagina.
John: So what happened after you left the bar with that chick last night?
Mike: We got it on, but that bitch was such a peter meter she was bonin someone else before I was out the door!
Mike: We got it on, but that bitch was such a peter meter she was bonin someone else before I was out the door!
by John Michael Parmon April 21, 2008

A cock that is even smaller than an infamous millimeter peter; therefore, it will never see a pussy in its life.
by Big Daddy Kane June 25, 2004

by Succ for lucc October 27, 2016

by 1234373567474 May 21, 2011

Ones sense that the person standing in front of you is male even though they're dressed as a female.
I was at a bar and this person walked up to me. My Peter meter immediately went off knowing that she had a dick.
by Dingles01 July 01, 2024
