under beard
When a teenage boy is not yet man enough to grow a full beard, but instead grows ugly/nasty stubble under the chin and above the throat.
Tyler rubbed his under beard making a loud scratching sound.
under-beard
The ungroomed pubic hair of a man. See also "noseless under-beard."
Paul was swimming when his suit was pulled down, revealing to all of us his barbaric under-beard.
noseless under-beard
the ungroomed pubic hair of a female.
Karen decided to shave her noseless under-beard in order to keep an active sex life.