look up any word, like cleveland steamer:
 
1.
not wearing underwear usually used for males.
by Anonymous March 27, 2003
 
2.
Going without undershorts, said of a male, so called because his balls hang free and unencumbered. A similar expression is "going commando," which can be used of either a male or female without underwear, but is more often used of a male.
"A lot of guys like to freeball in the summer, but I prefer jockey shorts, to give my balls a little support, since otherwise they hang too low in the heat. I do freeball if I'm anticipating a sexual encounter, however!"
by bill July 20, 2005
 
3.
When a guy doesn't wear anything underneath his pants/trousers/shorts and he is letting himself hang loose.
My boyfriend wants to look tight in his pants, so he decided to do a little free ballin' and forgot his boxers.
by ErynnGirl19 April 06, 2004
 
4.
walkin' around, usually in shorts, without underwear on. often sung along with, and popularized by, the tom petty song 'free falling'
The stank, nasty fart left skidmarks; now he's free balling.
by stiger April 19, 2003
 
5.
the act of not wearing underpants (guy specific) which lets the men roam free
Cuz im free
Freeballing
by rocketman0274 January 25, 2012
 
6.
a Male individual who wears no underwear
EWH! That dude is Free Balling
by Xerxes-aka-Bryperson January 25, 2008
 
7.
When one wears no underwear beneath his trousers
e.g Did you see Steves arse, he was free balling so hard.

Or, In the sport of cricket one is said to "free ball" when they wear no box (protects genitals) whilst batting.
Carl: are you alrite dude?
Hank: Na man I took one to the balls
Carl: did your box shatter?
Hank: Dude I was free balling
Carl: Ooooohh
by WOW enthusiast September 29, 2007