Ultimate fail, misdoing, fatal error, or all around badness.

Megatron is the street name for the legal high mephedrone, it's sold in many herbal high shops under many different names i.e shake and vac.

the tiniest kid who makes a pretty big sound through his clarinet

A big attention whore!

An obese female, usually capable of consuming large amounts of "energon" such as chips, pizza, hamburgers, etc. in a single sitting. Megatrons tend to be rather obnoxious or loud, often being heard over most talk in a room.

robot version of jarv has a big ass rocket welded to his arm da baddest ruffest n meanest baddie of dem all