This word is an accidental bastardization of too much, often exclaimed when playing pool after one has overdone the speed or spin of a shot.
I can win the game with this shot...JUMANJI! I should have used less spin
by VAKI5 May 8, 2005
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The expression of euphoria when accomplishing a great feat.
Scenario: You opponent just made all the cups in beer pong, your only hope is to make all the remaining shots on your rebuttal.

Scene: You make them all, so you yell out, JumanJi!
by one tequila September 13, 2012
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Derived from the popular childrens movie/board game, jumanji refers to an inescapable, often psychotic female presence set out to trap you for life into her deep, scary, psycho-jungle, as seen in one of the opening scenes of the movie.
Bro, that bitch is a Jumanji, roll me a 5 or an 8! ASAP!
by thelittleking April 9, 2010
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Having the condition of unkempt or extremely overgrown pubic hair.
As when used in the phrase "Jumanji Jungle Bush"

Also, a shit movie staring Robin Williams.
I was going to go down on her, but she had such Jumanji, that I was afraid I would find crabs with spears and tom-tom drums!!
by Vinceums March 6, 2004
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when several males attempt an albino rhino on one unsuspecting female. The one who succeeds gets to be called Robin Williams until the next jumanji attempt.
"Man, my dick is so sore from last night's jumanji."
"Yeah, you got it rough. It was all good for me though"
"Shut up Robin Williams"
by awalzer December 15, 2007
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Used to describe something freakishly large or overgrown or to describe an extreme case of something.
My friend is suffering with a case of jumanji crabs. (particularly ferrocious case of pubic lice)

That cat's jumanji. (Unusually large cat)

Her breasts are jumanji.

I couldn't eat all that meal, it was jumanji. (best used after an all you can eat etc)

He's got jumanji feet. (ridiculously big feet)

Have you seen the size of that? it's jumanjified (Much bigger than usual)
by El Turk December 12, 2007
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Jumanji is a sick game played by people with a lot of time on their hands. The aim of the game is to deposit a fecal suprise in the opposing players bed and then when they lay in it one must call out "Jumanji" - this can also lead to a game of shit slinger but thats another story.
As the the victim slid into his bed, totally oblivious to the attackers watching his every move. Everyone jumped out and yelled "Jumanji".
by STALEFISH April 17, 2005
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