A goatee is
just hair on the CHIN.
The Big Bang Theory Season 7, Episode 16
and a perfunctory
CHIN jut of recognition
The Big Bang Theory Season 5, Episode 15
Pull the string back to
the center of your CHIN and release.
Game of Thrones Season 3, Episode 6
Benjen always lifts his CHIN
when he's about to charge.
Game of Thrones Season 6, Episode 2
...with half his CHIN scraped off?
The Big Bang Theory Season 3, Episode 10