The Megatron

A sex move involving the man pulling out of a woman while having sex in the back of a truck, and dumping his load into the engine of the car.

In rare cases, the vehicle has been known to transform on site and immediately begin searching for the All Spark.
Oh what the hell! I really wish i never did the Megatron because now my brand new truck it out searching the world for the All Spark.
by Black man, little suit, May 31, 2010
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Megatron

A crazy ass bitch who will stop at nothing to get fucked up. A good friend, but also a good friend who is always willing to fuck some shit up. The girl who gets high before night class and brings fruit loops. The girl who almost quit lacrosse to go on spring break, because she wanted to fuck shit up so badly.
"Did you tron last night?"
"Oh shit, Megatron was out last night"
by thebabymaker January 24, 2013
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MEGATRON

(adj.) is PRIMARILY used for describing the terms "badass," "the fucking shit," "insane," "mind blowing," etc.

Made famous by Australian Jason Ellis.
"Dude that beer pong shot was so fuckin MEGATRON."

by DayGlo Dax Drilling August 05, 2008
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Megatron

BITCH! Stop being such a megatron!!
by blaze lol April 10, 2009
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Megatron

Ultimate fail, misdoing, fatal error, or all around badness.
-I tried to ask her out, but she walked away and hooked up with some random dude.
-what a megatron
by smiley808 September 07, 2010
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Megatron

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.
Let's do some Megatron
by Frogbox September 04, 2009
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Megatron

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.
"Bro, I was trapped behind this megatron at Wendy's. She was so loud, I couldn't hear anybody else in the room!"
by hurr durr herp derp January 05, 2012
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