Mega Mouth 

Someone who never stops talking in the work place or anywhere!

OH GOD ITS MEGA MOUTH...... I WANT TO DIE

Mega Mouth by ForeheadGinger January 4, 2023

Mouth mega phone 

when you open someones mouth whilst asleep and fart into it to make an echo and make it much louder.

Dude greg fell asleep
Dude lets totally mouth mega phone him
aight

Mouth mega phone by TheAlmightyDefiner January 5, 2016

metamouth 

A person who is not only a big mouth, but one that can't stop talking about themselves. Every conversation seems to loop back to 'them'.

Jesse: So, this has been the week from hell.
Chad: Fuuuuck... I've been there, I know what you're going through.
Jesse: Uggghh. My wife threatened to divorce me on Tuesday.
Chad: Oh, I went on a date last week... and she would not put out. Fuck that chick!
Jesse: Then my car's transmission went out.
Chad: Fuuuuck. I had a flat last month. Took AAA almost an hour to fix it.
Jesse: And my dog died.
Chad: Fuuuuuuuck. I know man. I had a goldfish die on me when I was ten.
Jessie: Your fucking goldfish?? You... you are a self-centered metamouth!! My God! Why do I come here every week?? You're the worst shrink I ever had.

metamouth by PDXJohnny99 April 22, 2013

Megamouth Shark 

A species of shark that was discovered in 1976 when a U.S. naval ship caught one on its anchor. Scientists dubbed it megamouth, for obvious reasons. Since then, the shark has been proven to be extremely elusive. Only 100 specimens of them have so far been found, but every one that can be examined reveals new information about these strange sharks.

Megamouth sharks can grow up to be 18 ft. (5.5 cm) long. To fuel such a huge body, it needs a lot of food, but, surprisingly l, this big fish is not a big game Hunter. It's a filter feeder and most of its diet consists of tiny, planktonic animals, which it strains from the water.

Megamouth Shark by Nordicdragon June 27, 2018