When someone goes from a normal person to a ass in under .0001 seconds.
by smizyxerletysevba May 7, 2006
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the alias used by dr. Jekyll to be a douchbag without consequence
person1: "man that mr. hyde character is a real jackass" person2: "yeah just last week he trampled my daughter"
by ongadoolover October 25, 2020
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'You heard the new Mr Hyde Mix'
'Yeah, its big- the boys got skills!'
:)
by Mr Hyde July 27, 2006
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1(n) the worst NES game ever made and is also one of the most hardest. The game starts you off being a man and for some reason everyone wants you dead. When you die (which will happen in thirty seconds) you turn into a monster and get struck by lightning and die.

It is also used for fire kindling
Bob killed himself after playing Dr. Jekyll and Mr. Hyde.
by eman777077 October 5, 2010
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1. A Robert Louis Stevenson classic novel written about the inner struggle of a man, Dr. Henry Jeckyll, who had the choice of becomming his alter-ego Mr. Edward Hyde. In the end, the evil Hyde overcomes him, and he dies.

2. An amazing Alchoholic Beverage.
We have to read Dr. Jeckyll and Mr. Hyde by wednesday!
Go pick up some Jeckyll and Hyde while you're out.
by Ian Kaulwell November 9, 2007
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Term used in reference to someone who starts off the evening quietly and passively, and then turns into a phsychopathic, party machine in a matter of 20 mins or less.
by Javo, J', Baro May 10, 2003
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