A standard system of measurement for determining if a girlsbooty is in the correct size range. This is done by placing the tips of your thumbs together and pointing your pinkies straight out to determine if a females butt fits within that size range. This system of measurement can be misleading if you have been drinking and your calipers become more flexible leading to a morning of shame and self-loathing.
Situation 1:
Justin: "I was drinking too much last night and my butt calipers caused me to bring home a heffer."
Chris: "That's unfortunate, you should probably chalk this one up to a slump buster"
Situation 2:
Samer: "I saw this girl at the club last night and was so excited when she fit perfectly within my butt calipers. Unfortunately it turns out she was like sixty years old!"
Describes the often obnoxiously over-optimistic view on life expressed by people from the West Coast (especially Californians) who currently reside on the bleak, cyncial and far too often pessimistic East Coast (especially New York City).
Homonym: Caliphilia
Californian: Thank you, and have a good one!
New Yorker: Yeah! Yeah!... whatever!
New Yorker: What's wit da Califeelia... can't you's see it's 15 freakin' degrees outside?
When a couple pre plans secret public sex by measuring the circumference of the man's penis and cuts a hole in a beach towel to be used as cover while fucking on the beach for pleasure without being seen by other people.