Priapic

[Marquetta]

Of or pertaining to the penis, penile.

The beauty of priapic is its semi-coded function: it can mean penile in a flaccid or an erect way.

Priapic is an adjective from name Priapus, but that word and the medical condition called priapism usually connote erection (i.e. erection lasting four or more hours).

[Couch Potatoe]

relating to male sexual activity and interests: