Frequently Activated Rectal Tremble 

Reverse acronym for fart.

Dude, Jorge has Frequently Activated Rectal Trembles. He smells like a pollcat.

Frequently Activated Rectal Tremble by keifermail June 29, 2009

knee-trembler

Sexual act with one or both partners standing

The two lovers stood in the stairwell and had a quick knee-trembler

knee-trembler by Spiked + "C.J. Beck" 8 March 2006 April 15, 2006

knee-trembler

quick sex done in an alley behind a bar. see the book anglea's ashes for reference. first chapter

knee-trembler by Michelle August 21, 2003

womb-trembler 

The kind of thing that make all Child bearing aged women go 'Ahhhhh'. Example 'Channel 4's 'One Born Every Minute'

Oh my god did you see *baby programme* last night? What a womb-trembler!

womb-trembler by lavenderlou April 11, 2010

knee trembler 

Copulation while standing up.

We had a knee trembler behind the garage.

knee trembler by Donald July 7, 2003

knee trembler 

A fast and furious act of sex in an alley way close to a nighclub or bar. Normally unfulfilled due to coitus interuptus from other couples attempting a knee trembler or a sudden onset of brewers droop or being moved on by the Police.

We had a quick knee trembler but the coppers chased us of before I copped off.

knee trembler by yobeens September 17, 2004

Tremble 

2 compulsively shake,during bomb 💣💣ass SeX♡♡...

I tremble with desire when he fucks me; our sex is bomb!!my body trembles uncontrollably when his tongue...

Tremble by CaLi❤💖LOVERGIIRL February 5, 2019