Top Definition
when somebody lubricates thier fist and inserts it into ones butthole in a punching motion.
" dude my girlfriend is a freak. last night she let me give her a wet uncle sam!"
by R.I.P Geoff July 12, 2009
5 Words related to wet uncle sam

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.

×