megalongdong 

oh, you were looking for a fish, right? well look where that got you. mega. long. dong.

i’ve been studying a lot about sharks and i can tell you have a megalongdong

megalongdong by I can’t put my real name August 27, 2021

Megladome 

A fictitious representation of a place that is unobtainable.

" I want to get a tattoo on my inner thighs that reads, ' Welcome to the Megladome', in German.

Megladome by BobbyTurkle January 19, 2013

Smegaladon

An enormous amount of smegma so big that it takes the form of a Megaladon

Anyone got a rag? I think I got a damn Smegaladon down there.

Smegaladon by CodeNameBingo November 23, 2018

miggladon 

a big white shark-man that jumps on and cripples its prey. also very good with computers. the only way to beat one is with a dropkick.

my computer crashed, i'll have to ask the miggladon

miggladon by averageniggajoe April 25, 2010

Megamadon

A bold and blunt being who religiously consumes lentils to assist in the expostulation through the fundamental orifice. Rugged, mean and daring, no mountain is too high, this little fucker will soar to very high altitudes to achieve only greatness. Don't let him fool you though he may use filthy wizardry on yo ass.

he aint no bitch, he a megamadon

Megamadon by EB123456789 November 22, 2011

Negaladonasaurusrexatron 

Another meaning for the word "negative" A mixture of Negaladon, Negasaurus Rex and Negatron

Neg-a-la-don-a-saurus-rex-atron

Mum Says "Can you please dry the dishes"
Son Replies "Negaladonasaurusrexatron"

Negaladonasaurusrexatron by Monsoon_James88 January 17, 2011

megadon 

Fictional city from album 2112 by Rush. Lyrics by Neil Peart.

The quote can be found on the liner jacket from the album. Megadon isn't mentioned in the song.

megadon by john maclean November 10, 2003