Why is it called toothbrush instead of teethbrush?!

Question: or pair of pants? Why?

Answers: or pair of pants? Why?

Ummm, a red-neck invented the tooth-brush? :P

btw: Never try to make sense of the English language ... it'll drive you insane. :)

good question.

maybe you're supposed to brush one tooth at a time? And I guess a pant is one leg and since most people have 2 legs, it's said plural.

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