Equates to 'beaten', weighed or murked. If somebody is 'flopped', they are beaten up. Used by rudeboys and chavs in south Essex.
"What you lookin' at blud? Man'z gonna be flopped!"

by Essexdan February 16, 2007
When someone decides not to show up last minute.
I can't believed he flopped. I waited at the McDonals for an hour!
by DJ Flipside August 15, 2007
That sensation one can experience when they collapse onto a comfortable surface after strenuous activities. This feeling occurs after a "flop" has taken place, which is the action of flopping down onto the comfortable surface. At times a good flop can in fact surpass the feeling of sexual intercourse.
Gavin: " That flop was outstanding! I feel truly flopped.

Dylan: "I was so flopped last night I almost jizzed!"
by Goerge101 June 19, 2011
did'nt work out as planned
i know i promised but it did'nt materialise
by Anonymous April 1, 2003
In a sports match up where a player draws a foul by PRETENDING he was struck or tripped by a player of the opposing team. The acting is almost as bad as Keanu Reeves in a movie.
During 3-24-2011 Sweet 16 match up, UConn's Kemba Walker drew a technical foul when he flopped after a slight shoulder nudge by San Diego State's Jamaal Franklin.
by StopLosingBets March 25, 2011
The Flop is the penis coming out of the slacks or trousers.
You have till 5 o'Clock to make with the Zip, the Flop, the Splash and the Boo-Hoo
by FlopFerDays April 29, 2014