A brick.
Red is a colour. Bad for your teeth means something that is detrimental to your dental health.
A cherry Jolly Rancher candy
A brick
Probably Lightning McQueen, biting into him probably wouldn’t be good for your teeth
Evil red tooth melting acid 😈
Oof ouch, my teeth.
Yeah, i think Coca-Cola is fitting
knuckles the echidna
Unlike Sonic I don’t chuckle, I’d rather flex my muscles.
Magma
Mountain Dew: Code Red
The red M&M
A ginger dentist with paranoid schizophrenia who’s convinced that Zombie-Aliens have sent you to spy on them, so they sedate you and violently drill away at your teeth to find the hidden microphone
A bleeding hand punching you in the face.
Betel nut chewing
The book Quotations of Mao Tse-Tung.
It can’t be good for your teeth.
Fire hydrant