memgasm 

1. A throwback to something very pleasurable in one's past.
2. A feeling of absolute bliss because one suddenly remembers something pleasant in one's past

John: I think I just had memgasm
Jilll: OMG, what happened??
John: I just heard "Smoke on the Water" for the first time in like 25 years

memgasm by beerpatzer September 20, 2015

megasmegma

The pinnacle of cock cheese, with an odor so potent and lethal, that it could be used in chemical warfare

Johnny didn't wash his cock for two months, so when he went to work, his megasmegma permeated throughout the air and whoever breathed it in developed seizures as their skin melted off. They died soon after.

megasmegma by Pecker Erector January 2, 2014

Memegasm 

When an overload of memes causes you to orgasm. Multiple memegasms in a row may lead to; spontaneous laughing, shortness of breath, and addiction

Billy had too many memegasms and now he can only speak in memes, it's almost sad.

Memegasm by Piersontheraven September 28, 2017

melgasm

when Melody gives you an instant orgasm.

"oh god, guys. i just melgasmed. she's so rad."

melgasm by MellBell November 1, 2008

megasm 

A combination of the words "mega" and "orgasm," to describe extreme, almost supernatural, orgasm.

The mother of all orgasms.

"She's having a megasm!"

An orgasm in which one shakes, even convulses violently, while making a very pained expression and noise.

Usually refers to over-the-top female porn stars.

megasm by blackowl November 4, 2004

Mezgasm 

An intense feeling of excitement caused by Meryl Streep

Friend 1 - "I've just been watching Meryl Streep videos"
Friend 2 - "Been having Mezgasms have we?"

Mezgasm by chowfornow September 7, 2009

Megasmic 

Mega orgasmic.

That experience drop was megasmic.

Megasmic by Omid69 August 7, 2012