Flush Rush 

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?

Flush Rush by tlaketiger119 December 2, 2009

pre-flush rush 

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.

pre-flush rush by Chris Hrris August 19, 2007

after-da-flush rush 

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!

after-da-flush rush by my ass is fuckin hairy, man July 11, 2011

Flush and RUsh 

When you're taking a piss and you flush before you're done pissing and you have to finish before the toilet is done flushing. Many have made contests out of this and a scoreboard is recommended. DUDE GAME!

I just got a point in Flush and Rush

Flush and RUsh by Flush and Rush May 14, 2016

Rush Flush 

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.

Rush Flush by bbg100192 June 10, 2009

Rush to flush 

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.

Rush to flush by pnwtease December 6, 2013