1 definition by Jack the Anarchist

Top Definition
An explosive firework. Was sold in the United States until the Child Protection Act banned them in 1966 because of the large amount of injuries due to mishandling or stupidity. An M-80 is usually about 1-1/2" x 9/16" with the inside of the tube filled with flash powder. One M-80 can easily remove fingers or send particles into the eyes causing permanent blindness.
"Dude, did you see that M-80 go off? It blew apart that entire mailbox!"

"I know I don't have a hand anymore, I lit an M-80 in my hand and it just blew it clean off. I would give you the finger but I have none left."
by Jack the Anarchist April 05, 2006

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