1 definition by dayvudd

Top Definition
A state, usually precipitated by drinking and drug use, that approaches catatonia. Although common symptoms are indistinguishable from those of a coma, certain individuals may inexplicably maintain random higher brain functions, such as speech, and sexual ardor. May also be used as an adjective or descriptor.
1. Oh man... stay away from Noodles. He's gone brainstem.

2. That stupid brainstem Billy just tried to grab my boobs!

by dayvudd February 12, 2008

Free Daily Email

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

Emails are sent from daily@urbandictionary.com. We'll never spam you.