The act of flushing the toilet immediately after you drop your business in a crowded bathroom, insuring the smell doesn't spread.
Girl 1: Damn, that was a long one, thank god I rush flushed in the bathroom.

Girl 2: Yea, before all the other girls in there could smell it and start laughing when you walked out.
by bbg100192 June 10, 2009
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When a group of people rush to the bathroom at the same time during an event. An example can be during halftime of a sporting event, especially the Super Bowl. Another example is the mass use of bathrooms right after lunch hour in offices.
Fan1: Aren't you going to the bathroom? It's halftime.
Fan2: Nah, I'll wait until after the rush to flush.
by pnwtease December 6, 2013
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When you take laxatives and ipecac and then engage in sexual intercourse. When timed correctly, you both orgasm, vomit, and defecate simultaneously and fall asleep in a steaming morass of your own filth.
Could we please not get a motel room that smells like it was just the scene of a flush rush?
by tlaketiger119 December 3, 2009
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to flush the toilet prior to taking a dump to avoid the smell, sound of embarrising clashing water, (and most of all) the waiting for the feces to go down the pipes.
Ryan- Hey man whyd u pause the game?
Chris- I have to take a dump but i promise to stay in a pre-flush rush mode.
Ryan- Alright good, thanks man.
by Chris Hrris August 15, 2007
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the feeling of happiness and relaxation after taking a nice big shit.
donny: (with a big smile on his face, reclining into a chair) ooooooooooooooooh yeaaaaaaaaaahhhhhhhhhhhhh i feel better!

scotty: whats up with you man, you just hit a bowl or something?

johnny: nah dude, he just took a big shit. i hear him moanin' and groanin' and all that shit, and the plunger going.

donny: i got the after-da-flush rush!
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