n. breasts characterized by their firm and taut appearance and feel. Usually on the smaller side, nice to grab, however, not very bouncy.
Dude...she was hot! I liked her tight little body and I even liked her cute little muscle tits!
by Barry Flomar January 22, 2004
A male weightlifter or bodybuilder whose oversized pectorals, a symbol of strength, dominate his general physique and become the focal attention so much that it becomes lewd. Often accompanied by large nipples that thrust out when bare, or poke out when in a shirt. Often used for ridicule or muscle humiliation scenes.
"Hey muscle tits, wanna bench that 300 5 times more?"
by Manhooters62 February 21, 2014