1. A thrash metal band (actually spelled megadeth.
2. death of 1,000,000+ people.
3. A band name change - Pink floyd made before it became pink floyd - "The Meggadeaths", along with "The Abdabs", "The Screaming Abdabs", "Sigma 6".

When you eat dirt for the first time and leave your family to build a shack in the woods

1 million deaths. Commonly used in reference to nuclear war.

This word means that you misspelled the bandname "Megadeth" who's the greatest thrashmetalband fucking ever!

Megadeth- one of the most bitchin thrash metal bands ever
Megadeath- when more than more than 1million people die from a nuclear explosion or zombie attack.

What happens when a girl gives a beating to all who try to have babies with her man.

The action of hiccuping, burping, coughing, sneezing, ears popping, farting, pooping, and peeing all at the same moment, causing instant death. Viewing it will cause instant Megadeath to the viewer