Bunnybrick

A Bunnybrick is a non-complimentary term you give someone who is massive, muscular, and appears threatening in every way - except that in real life they are actually quite timid, self-conscious, and sometimes act childish. Usually they are hired by other gangsters because they are easy to manipulate, can do strong jobs, and work for little pay or return.

"Are we still on for that bank job tomorrow evening ?"
"Yeah. Mac, our local bunnybrick will take care of the guards."