1. (人体某部分)松弛的，松垂的，绵软的
You use flaccid to describe a part of someone's body when it is unpleasantly soft and not hard or firm.

1. out of condition
not strong or robust
incapable of exertion or endurance

e.g. he was too soft for the army
flabby around the middle
flaccid cheeks

Synonym: softflabby

2. drooping without elasticity
wanting in stiffness

e.g. a flaccid penis