Vulnerable to fun. Extremely open to doing fun things. Easily affected by fun things.
She is extremely funnerable, she will do just about anything that sounds interesting.

When on drugs, I become extremely funnerable.
by refactor March 18, 2013
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being more fun that regular fun, the ultimate good time.
Driving really fast through a deep rain puddle is funner than jumping in one.
by lizard March 26, 2004
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Yes it IS now accepted. FOr more info see
www.quinion.com/words/qa/qa-fun1.htm

In short.. it mean more fun... you can also use funnest
by D-Generate January 09, 2004
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More fun.

Sounds better than "More Fun"

And Shay Carl said "funner" so it must be correct
World of Warcraft is Funner than Rift
by Xulq April 16, 2011
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A word used to describe something that is more fun than something else. This is the way you say "more fun" without sounding Lame!
As quoted from Maddox "The Dog".... "Sean is my Funner Dad" or "Disneyland Dads are Funner than Lame Justis Dads"
by shannon111 April 30, 2007
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