Definition
Synonym of grow a pair.
Also Said As
How People Actually Use It
Insult used to describe a male who is acting in a weak, vacillating or timid manner. Meant to imply that in order to gain courage the person named needs to develop a "set" of testicles. See get a pair.
"David"I'd like to ask Jane out, but . . " Chris"Oh, grow a set and ask her, will you?""
Source: Urban Dictionary