1 definition by newom123

Top Definition

Very Very Smart. When the brain muscle is so jacked, you are unbeliveably Smart.

Modification of the Word Jacked, meaning very muscular or strong.
Person 1: Dude, I cannot Get this Question, its Redonk
Person 2: Bro, you just have to use the Binomial Expansion
Person 1: Holy Shit dude, your fucking Brain Jacked
by newom123 September 20, 2009

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.