Butt calipers

[Vania]

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.