A pair of unbreakable, industrial-grade pecs or breasts. Used when referring to a muscular person, with available diesel features such as a huge, grisly chest and cannons for arms. This person might also come equipped standard with tonka tits and two beast modes.
-Look at that guy on bench over there - he can't put that kinda weight up!
-Man's got tonka tits - yes he can!
-Man's got tonka tits - yes he can!
by Marcus Ginyard May 11, 2008