literally: 'to fill the gap in between the teeth, used as a metaphor to emphazise the smallness or the insignificance of something, that it is virtually of little use or value (so small that it cannot even fill one's gap in their teeth)

a tooth for a tooth

Bo Ya, a minister of Jin Kingdom during Spring and Autumn Period

to have a religious meal

gnashing of teeth [colloquial]

lit. showing teeth and releasing chin, meaning expression of unwanted emotions or opinion

lit. showing teeth and releasing chin, meaning expression of unwanted emotions or opinion

sensitive tooth

toothless tiger, something / someone that seems to be powerful and scary yet cannot bite / strike, the government practicing a law

brush teeth

to brush one's teeth and wash one's face [colloquial]

dental or tooth extraction

protruding teeth

someone with protruding teeth [colloquial]

two not at good terms or compatible with each other

not enough to fill the teeth gap, it means the portion of food is really small

teeth fitting well together, it means people / things get along with each other well

a situation where two parties are getting ready to go head to head in a competition; when success is in sight for matters relating to arranging contacts

plug a tooth

Rabbit teeth (big front teeth)

a molar teeth

(slang) what someone said is the truth or for real; absolutely true; for sure

a proverb to describe a feeling of high confidence or certainty that something (the result of decision(s) / event(s) / matter(s)) will turn out to be in line with the expectation

chipped tooth

chewy

only talking and taking no practical actions

only talking and taking no practical actions

“oh, I am really scared” / “I am really afraid of you” (in a sarcastic tone to challenge someone); I am not afraid of you [colloquial]

verb; chatting, chew the fat

to chat