Megatron

Anal penetration, with no warning, no luracation, or condom.

origin; Holyoke Ma.
Don't make me megatron you!
by Clyde Harper February 08, 2009
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Megatron

Something that is huge or really big, usually used as if something is really bad (because Megatron is the bad guy in Transformers)
Man, I had a megatron exam in math, and I'm sure I bombed it.

That guy is a megatron douche!
by Cerpin Taxxt October 29, 2006
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The MegaTron

Similar to the donkey punch...
Whilst having sex in the doggy style position, the dealer yells out loud

"You have failed me for the last time Star Scream!"
followed by the dealer punching the receiver in the back of the head.
I totally gave jenny the MegaTron last night...one word... EpicEjac.
by ClaverFlav June 28, 2010
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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

a mighty beast that small villages conviniently by pubs. often knocked down by tennants super or a rortise
theres a mighty megatron living in saltford, rasp him with tennants to knock the beast for 6
by poland June 12, 2003
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Megatron

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