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When a person who has just recieved pay-off anal sex goes into the bathroom afterwards to freshen up, the noise that they produce as they sit down on the toilet and fart out depraviar is known as a quack echo.
"Whoa! You just hear that quack echo? Leanne must have got lucky!"

"Err, no, i'm in here," shouts Leanne from the kitchen.

"Fuck! It must have been Albert then! That sly old dog."

"Oh yeah, he loves it. And i've got a silencer anyway," explains Leanne, "so you wouldn't hear a quack echo of that magnitude from me."

"A silencer eh? I just do mine in the shower to drown out the noise."

"Classy."

"Oh yeah. Very."
by H.S. Willsy August 23, 2011
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