m-80 

A side fused illegal firecracker/salute.
Usally contains 3grams of flashpowder.

M-80s go boom................

m-80 by Bleh July 28, 2004

M-80 

M-80s were invented by the military long ago to simulate grenade explosions during training missions. Soon they became extremely popular with the public, and were sold as large firecrackers. But the Child Protection Act of 1966 made M-80s and cherry bombs illegal to manufacture in the United State

I blew my finger off playing with an M-80.

M-80 by Paisa July 14, 2005

M80Marc 

A cool YouTuber, he mostly posts Sonic.exe games. He has 164K subs. And is very funny.

Person1: Do you know M80Marc?
Person2: Ye he is my favorite YouTuber.

M80Marc by Ytreader April 21, 2022

M-80 

A firework that contains about 3 grams of pyrotechnic powder. Most M-80s are actually pieces of crap that contain tiny amounts of powder compared to genuine M-80s (firecrackers are called M-##, where ## corresponds to the amount of powder it has in grams). Illegal since 1966.

Real M-80s were so strong that the military used them to simulate grenade explosions.

M-80 by The Mr Needles Experience October 11, 2007

M-80 

Explosive device used by the residents of Alabama to remove their own hands.

After I finish my Pabst, I stepped out of the trailer and watched my brother/father blow his hand off with an m-80

M-80 by sarcomax July 30, 2003

M-80 

a firecracker that kicks ass. until some dumbass kids blew their fingers off, now they're illegal. thanks for ruining it for the rest of us, dumbasses

m-80's are fun to blow up dog poo with

M-80 by cream of sumyungay September 26, 2005

m-80 

A big ass illegal firecracker/quarter stick of dynamite.Used by the army as simulation grenades for training, but some ordinary people wanted them to play with so they stared selling them at stores, until people started blowing there hands off. Now there illegal.

"Could easily blow up an ordinary mail box, but dont do that cuz that is a very big federal offense."

m-80 by zack--~KAZ~-- July 21, 2005