Meat lockas are when somebody has really big hands that are good for locking meat. As in eating a lot of food. Mainly noticed on men with big hands or even gorillas.
Girl 1: "DUANGGG girl you see that guys hands?"
Girl 2: "let me look!"
Girl 2" "WOW those are some big meat lockas"
Girl 1: "I'd like to see those in action"
Girl 1 says to Girl 2, Hey look at those guys out over there. Girl 2 says, Oh wow I like the one with big muscles. Girl 1 replies the one with no neck? Girl 2 Oh yeah, he's so big! Girl 1 replies your such a Meathag.