Kinetic laughter 

When 2 or more girls are together and start laughing uncontrolably and/or spontaneously.

Madi and Cassie started laughing uncontrollably at random. Rob named the phenomenon kinetic laughter.

Kinetic laughter by Kineticlaughtersociety April 23, 2018

wetness to laughter ratio 

A ratio relating to the volume of urine excreted concurrent with laughter which may be used as a fairly reliable estimate of how funny something is.

Pissing myself the whole time and unable to stop, I cleverly cited the prank’s wetness to laughter ratio as an excuse.

wetness to laughter ratio by Dr Bunnygirl August 16, 2019

devils laughter 

The clarity you feel after you cum

You were thinking about calling your hoe x up but then you nutted. The clarity you experience to not do that is the devils laughter

devils laughter by DonRonRubio January 29, 2018

maniacal laughter 

Laughing Evilish, like you just took over the world or something.

muawhahahaha
or you could hear the maniacal laughter coming from the guy who just took over wal*mart

maniacal laughter by Fobio July 17, 2006

after laughter 

When you start laughing at a random memory of humor past.

Rita had after laughter today when she remembered my hilarious ChaCha impersonation from yesterday.

after laughter by fru January 29, 2010

Canned Laughter

The worst invention since the A-Bomb.

Used by almost all American comedies which if you listen closely enough you can hear the winding of the laughter going round and round.

If you hear canned laughter dont expect to laugh.

Expect to be forced to laugh.

Then again the British are just as bad.

Canned Laughter by Biafra J July 30, 2004

hysterical laughter 

To come face to face with an epiphany moment that results in an instantaneous burst of uncontrollable laughter for a prolonged period of time.

I suppressed the thought of being pregnant while getting through final exams followed by a trip to the pharmacy. As soon as I saw the result of my pregnancy test I broke out into hysterical laughter.

hysterical laughter by MAM803 May 3, 2016