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."