Chin Diaper 

An improperly worn face mask pulled down under nose and mouth and it rests on the chin

Hey douchebag put your mask on correctly it's not a fucking chin diaper asshole

Chin Diaper by anonymous October 2, 2020

Chin Diaper 

When an idiot wears his/her/attack helicopter only on their chin defeating the purpose of the mask.
First seen on South Parks Pandemic special

Anon 1: I don't wanna wear a mask I can't breathe with it
Anon 2:Just wear it as a chin diaper

Chin Diaper by Cyleogre October 3, 2020

Chin Diaper 

A pejorative/insult thrown at mask Karens/ manchildren to mock them for wearing their mask(s) 24/7 even in their own home, car, or when their alone.

That dude is wearing a chin diaper in his house. WHY? HE LIVES ALONE AND ALMOST NEVER LEAVES HIS HOUSE!

Chin Diaper by Retr0625 December 17, 2021

chin diaper 

When a guy has a beard that just covers his chin and it doesn't look good.

Dude, that guy has a chin diaper to rival Lance Bass. I don't want to make out with that!

chin diaper by scaredkitty December 15, 2011

chin's diaper

A small Thin Blue mask that was popularize due to covid-19 Usually mass produced in China.

They have so many Asians turning out the cheap thin mask that is basically an "chin's diaper."

chin's diaper by EmJayee October 16, 2020

Chin diapering 

Gerund form of multi-part verb “to chin diaper,” i.e., to lazily pull your mask under your chin instead of taking it off completely and deploying when needed.

“Man, it is staggering how many people are chin diapering in midtown today. Lazy fucks look like freaking idiots walking around like that. Sheesh."

Chin diapering by Vanderweasel September 25, 2021