1 definition by HEHMKM

Top Definition
Random Occuring Boner. This usually happens when a hot ass girl walks by you in the middle of class, you look at her, and POOF. Instant boner and instant embarrassment. Congratulations my friend, you have a ROB.
Tyler: "Dude, you need to get your ROB under control."
Grant: "Ahhhh man, she's so hot though. Oh shit, look away!"
Tyler: "That was disgusting as fuck, man."
by HEHMKM June 29, 2013

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.