limp dick
The term "limp dick" is a vulgar slang expression used both literally and metaphorically to describe weakness or lack of function.
Definition
C2Health
(vulgar, informal)Inability to achieve or maintain an erection.
C2General
(vulgar, informal)A weak or ineffective person.
Similar
Terms that have similar or relatively close meanings to "limp dick":
needle dickpencil dickbaby dickdonkey dickswinging dickwet noodlelimp reraisecoke dickhorse dick