Top Definition
A phrase describing being so close to someone that it is akin to being on a man's grundle
Person A: James was so close to Nick that he could feel his breathe.

Person B: Yeah, James was up in his grundle.
by Juno992 April 03, 2010

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.