The way by which a man measures his level of fitness. If his body mass becomes too large he will not be able to see his penis in which case he is overweight; however, if he is able to look down and see his penis, everything is good.
Wife: "You are putting on too much weight."
Husband:(Looks down and sees Penis) "Nope I'm good, my penis to mass ratio is normal."
Doctor: You need to lose some weight if you want to stay healthy"
Patient: "I thought so to, but I got a boner this morning and my penis to mass ratio seems fine."
A standard system of measurement for determining if a girls booty 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.
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"
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!"
Nick: "You still had sex with her didn't you?"
Samer: "You're focusing on all the wrong details."
A word for describing when a woman's pants are pulled up so tight you can see her beef curtains. This has the resemblance of tracks left by a wagon wheel. Observing said event can be enjoyable yet leads to penis frustration since it makes you want to have sex with her. The term is synonymous with camel toe.