Top definition
Spongebob's Definition:
F- is for friends who do stuff together!

U- is for you and me!

N- is for anywhere and anytime at all down here in the deep blue sea!

Plankton's Definition:

F- is for FIRE that burns down the whole town!

U- is for URANIUM... bombs!

N- is for NO SURVIVAL WHEN YOU...

Spongebob and Plankton together:

F- is for Frolic through all the flowers

U- is for ukelele

N- is for nose pickin(not what u think), sharin gum, and sand lickin (what...) here with my best buddy!

hahahahhaa... yeah they go off laughing for a while then Mr.Krabs says, " Arrrg... Mutiny "
Yep... those are the actual words. Sad. I'm glad i'm not OBSESSED with spongebob anymore ^_^.
by Cherushi November 09, 2003
2
n.
A source of enjoyment, amusement, or pleasure.
If you never did, you should. These things are fun, and fun is good. --- Dr. Seuss
by Gremlin July 29, 2003
3
Fun. The only thing Cody and David do together.
Cody: "Baby, that is all me and David do together is fun shit. You look on Urban Dictionary and you will find a definition that reads, "Cody and David activities." It is a fucking thing."
by Cody and David June 06, 2018
4
A band consisting of Nate Ruess, Jack Antonoff, and Andrew Dost (with touring members Will Noon, Nate Harold, and Emily Moore). They have two albums, Some Nights and Aim and Ignite. Their music will touch you in places you didn't know you had.
I just listened to The Gamber by fun. and I might cry.
by alltheprettygirlsonatusday December 30, 2012
5
Clearly something that you arent having if you're searching it on here.
Guy one: Wanna go to a party tonight?
Guy two: NO!
Guy one: WHY?!
Guy two: Because I'm looking for fun on the interent.
by Mechgeek May 24, 2010
6
doing things you arent supposed to do!
Sneaking out with Jimmy was fun.
by cosmo March 27, 2004
7
F-fuck life
U-underestimate you
N-need saving
That made me have fun.

(only if you knew what that means)
by awesome ass fuckk November 23, 2016