Top Definition
The act of mentally envisioning erotic acts and/or situations in public after viewing an erotic image ie a sexy advertisement or an attractive woman.
Alex: dude, I saw that guy looking at the sports illustrated swimsuit magazine in the gardening section at the bookstore
Kyle: Yeah, he was totally mentalbating
by KSTORMY April 05, 2010

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.

×