When a [[penis]] is not fully [[erection|erect]]. A half-erect penis may have the same width and girth as a fully-erect penis, but is not stiff enough to stand up by itself. 

Not to be confused with a [[flaccid]] penis, which usually has reduced size and is completely soft.

h4. Related Tags
* [[erection]]
* [[flaccid]]
* [[girthy penis]]
* [[veiny penis]]