serious term of abuse (even stronger than "armpit"), but suitable for use in polite company where the target individual is not just a fool, but an annoying fool.
"you THRUSH!"
"why thrush??"
I'll explain in private....
later...
"because you are an irritating cunt."
An inexpensive high performance automotive muffler that provided a lessening of back pressure on the exhaust valve(s)of a gasoline engine and scant noise abatement. Uncanny in their ability to attract the attention of policemen. Now obsolete. Also a type of bird. Fly = Go fast.
Hey man, your Nova is cherry and sounds bad with those thrush on there...
Noun, a synonym for "fake news journalist", or "journalistic hack", in reference to Glen Thrush's self-imputation in an email during the 2016 Presidential election.
Jake Tapper's son should have called his dad a thrush; it more accurately describes his journalistic skills, or lake thereof.