megadrive 

The English and Japanese (and yes, better) name for the Sega console, namned in america and Genesis

Yay! My megadrive is better than your Genesis!

megadrive by Kieran February 28, 2004

megadrive overdrive 

Condition brought on by excessive use of a Sega Megadrive or downloaded Sega emulator, characterised by extreme hyperactivity.

Symptoms include but are not limited to; insomnia, RSI, binge eating cupcakes, eye twitches and nervous tics. Similar effects can be induced by crushing a coffee bean into your eye or (memo: fact check) overdosing on speed.

Wynette: Mark my words, we are going to beat Alien Storm today.

Louis: Wynette, I highly doubt it.

*7 hours later*

Wynette: Oh no, oh bollocks, I think I’m going into megadrive overdrive! I can't sleep! But I have to beat Alien Storm and then all of Sword of Vermillion.

Louis: We’d better take the day off work tomorrow.

megadrive overdrive by wmmw May 29, 2009

sega megadrive

See Sega Genesis.

The Sega Megadrive was the japanese version of the Sega Genesis.

sega megadrive by Mr_MoJo_Risin777 May 5, 2003

Megadave 

1) Nick name of Megadeth's Dave Mustaine
2) Nick name of Megadeth

"I'm off to see Megadeth tonight, it's going to be AWESOME!"

"Correction you're off to see MegaDAVE"

Megadave by Jimna May 11, 2009

Megative 

The absolute opposite of negative, even more so than positive.

Franklin: "Dude, she has lots of money and huge titties!"
Stuart Skauge: "Megative!"

Megative by Tween October 6, 2005

megarave 

An illegal event singled out to be busted by riot police, marked as such by some website called Squatjuice.

Are you coming to the Megarave Dave? I hear it'll be a riot!

megarave by Ket Head December 20, 2006

megative 

Something extremely adverse (see: negative).

The torrential rains had a megative effect on my golf game.

I hope my addition to the Urban Dictionary does not megatively affect Roy Blount's on-going efforts to be honored in a similar fashion.

megative by Tad McDonald February 2, 2009