Top Definition
Liver math is the calculation(s) you make throughout the night to help determine if you are sober enough to drive home.

Alcohol is processed by the body at a determined rate (generally one beer/shot/wine glass an hour), and you can save yourself a night in the drunk tank and some legal fees by adhering to liver math.

Liver math or cab fare. Either is a wise choice. Disregard at your own peril.
Friend #1: "My ex just showed up here with her new bf. I'm leaving as soon as the liver math allows it."

Friend #2: "No way! You're my ride! Let's get fucked up and take a cab when the bar closes. I'll drive you to your car tomorrow."

Friend #1: "Good call. Screw that bitch, anyway."
by mrbean34 March 09, 2014

Free Daily Email

Type your email address below to get our free Urban Word of the Day every morning!

Emails are sent from We'll never spam you.