A goatee is
just hair on the CHIN.
The Big Bang Theory Season 7, Episode 16
...with half his CHIN scraped off?
The Big Bang Theory Season 3, Episode 10
Benjen always lifts his CHIN
when he's about to charge.
Game of Thrones Season 6, Episode 2
Pull the string back to
the center of your CHIN and release.
Game of Thrones Season 3, Episode 6
I expect you to wipe the pudding
off your CHIN. Gentlemen.
The Big Bang Theory Season 6, Episode 8