1 definition by Shea Holtzman

Top Definition
(v) To carry out a laborious task that demands great strain on one's body or muscles.
I was on the jobsite the other day musclefuckin some bags of concrete. -B. Wolfgang
by Shea Holtzman January 18, 2006
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.

×