Top Definition
(verb) To tighten the asshole

*caution: do not laugh hysterically while frunzing.
"I have to take a shit man!"

"dude, just Frunze it! "
by Cheeplook August 02, 2009
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.