mouth-breather
n.— «Conversation is also the old familiar college topics with the occasional joke, sometimes racist—these people are very comfortable together—for a guffaw. “They are all stewardesses, and she had blond hair about down to here,” says a mouth-breather, also in a standard gray.» —“South Street Singles” by Sandra Earley Newsday (N.Y.) Jan. 16, 1986. (source: Double-Tongued Dictionary)
Further reading
A flashlight emits a steady beam of light. So what’s the flash part of that word about? Also, if you’re a nervous Nellie, you’re skittish and indecisive—both characteristics of an American politician who earned that nickname in the...
Sigrin writes from Albany, New York, that she misheard our earlier conversation about the expression shaving yak hair meaning “performing a monotonous, tedious task.” At first she thought we said shaving gnat hair, which she figures is...