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1.
A bender in which the individual does not drink in excess but rather fucks in excess...a fuck bender (funder).
My friend Catherine recently became single and is going on a funder through the city.

Funder Ho!!!!!
by Funder Cat!!! June 28, 2013
 
2.
fun thunder,its like thunder but its less dangerous and more fun
Mommy can i go play in the funder
by eric fool September 05, 2003