flop
flop
noun
A complete failure; something that is very unsuccessful, especially a film or play.
"The new film was a total flop."
verb
To fall or drop heavily and suddenly, often in a relaxed or tired way.
"He flopped onto the sofa."
Thesaurus
Synonyms: bust, fizzle, right, washout, dud, fall flat, founder, fall through, floating-point operation, collapse