Trembles 

Local emocore/screamo band. Fronted by Matt Tremblay. Very big following.

Trembles rocked the house last night.

Trembles by Nick DiFranco March 28, 2004

Sphincter trembles 

Fear of relaxing the sphincter after a few days without a poo

Had my morning coffee with my partner this morning and got a case of the sphincter trembles, sat there smiling with fear of how this would play out.

Sphincter trembles by MellyMooster June 15, 2015

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