look up any word, like ratchet:
 
1.
The ability to understand humor.
-Tom told me a joke, but I didn't get it.
-Well Jake, it's probably because of your lack of funderstanding...
by maruree February 20, 2008
 
2.
Resigned acceptance or tolerance of an act which is fun for one party but not another.
"You guys can have a knife fight outside of the liquor store, it's okay, i FUNderstand."
by Casey Arney February 18, 2004