A fo five is a .45 caliber handgun. This could be anything from a Colt 1911A1 to a newer Smith and Wesson third generation pistol. A fo five is a pretty big ass bullet, that you don't want no parts of (unless you're not on the recieving end).
by Your Father February 5, 2005

by Chris March 26, 2003

It's a high five that only men can do. Except instead of slapping hands together you slap penises together.
by GETLIQUIFIED March 8, 2009

A long-distance high-five, often referred to as an "air-five". Commonly used when a friend is too far away to reach and slap some skin, such as in a crowded party, on the dance floor, car-to-car, or in class.
by Capn Josh April 16, 2011

5 inches erection.
Modest erection.
Short erection.
A five-incher is a penis that is too short to please women who like well-endowed men.
Modest erection.
Short erection.
A five-incher is a penis that is too short to please women who like well-endowed men.
by Bobmodest June 30, 2009

man 1: hey man what'd you and that girl do after you took her home?
man 2: we smoked some weed then i high fived her.
man 1: get some!
man 2: we smoked some weed then i high fived her.
man 1: get some!
by himynameistimmy January 19, 2011
