Abbreviation for "half-assed mustache". When someone with very little ability to grow a mustache nevertheless attempts to do so and ends up with a faint line of upper-lip hair. Usually found on pubescent males. Often a sign of the wearer's insecurity concerning his own masculinity.
"Anticipating the arrival of her blind-date, Tammy envisioned a dashing, debonair Southern gentleman - a well-coiffed, mustachioed Rhett Butler - however, her hopes wilted like day-old daisies when she was picked up by Wayne in his uncle's Camaro wearing a muscle-shirt and sweatpants complementing his newly-grown h.a.m. and a luxuriant mullet."
by dorianX January 25, 2009

by hard at midnight June 2, 2011

by liljesus3890 January 21, 2011

Going Hard As A Motherfucker
As used in the Jay-Z and Kanye West song H.A.M.
Meaning to put a large amount of effort into something
As used in the Jay-Z and Kanye West song H.A.M.
Meaning to put a large amount of effort into something
by ThatGuyWhoDefines March 21, 2011

by NetworkDr June 26, 2019

Deffiently not something you wanna find out. She can deffiently whoop some butt. If you ever have a chance to see what happens when she does go h.a.m must be your worst nightmare of a day.
Person 1~ Dude... What happened?
Person 2~ Pam Gone H.A.M. on me...
Person 1~ Man..... Your still alive?!
Person 2~ Pam Gone H.A.M. on me...
Person 1~ Man..... Your still alive?!
by OtterTot February 14, 2012
