Etymology
Advertisement

flop (v.)

c. 1600, "to flap," probably a variant of flap with a duller, heavier sound. Sense of "fall or drop heavily" is 1836; that of "collapse, fail" is 1919; though the figurative noun sense of "a failure" is recorded from 1893. Related: Flopped; flopping.

flop (n.)

1823, "act of flopping; any action that produces the sound 'flop;' the sound itself," from flop (v.). Figurative sense of "a failure; that which is a failure" is by 1893, from the notion of a sudden break-down or collapse. Extended form flopperoo is attested by 1936. The Fosbury flop high-jumping technique (1968) is so called in reference to U.S. athlete Dick Fosbury (b. 1947), who used it to win the 1968 Olympic gold medal.

Advertisement
Advertisement
Definitions of flop
1
flop (n.)
an arithmetic operation performed on floating-point numbers;
this computer can perform a million flops per second
Synonyms: floating-point operation
flop (n.)
someone who is unsuccessful;
Synonyms: dud / washout
flop (n.)
a complete failure;
the play was a dismal flop
Synonyms: bust / fizzle
flop (n.)
the act of throwing yourself down;
he landed on the bed with a great flop
Synonyms: collapse
2
flop (v.)
fall loosely;
He flopped into a chair
flop (v.)
fall suddenly and abruptly;
flop (v.)
fail utterly; collapse;
Synonyms: fall through / fall flat / founder
3
flop (adv.)
with a flopping sound;
he tumbled flop into the mud
flop (adv.)
exactly;
he fell flop on his face
Synonyms: right
From wordnet.princeton.edu