Clearly something that you arent having if you're searching it on here.

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 "

t's not about winning, it's about fun
What's that?
Fun is when you, fun is, it's like, it's kind of
Sort of like a, what is fun? I
Let me spell it for you
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
F is for fire that burns down the whole town
U is for uranium, bombs
N is for no survivors when you
Plankton those thing aren't what fun is all about
Now do it like this
F is for friends who do stuff to
Never, that's completely idiotic
Here, let me help you
F is for friends who do stuff together
U is for you and me
Try it
N is for anywhere and anytime at all
Down here in the deep blue sea
Wait, I don't understand this
I feel all tingly inside, should we stop?
No, that's how you're suppose to feel
Well, I like it, let's do it again
Okay
F is for frolicking through all the flowers
U is for Ukulele
N is for nose picking, sharing gum and sand licking
Here with my best buddy

n.
A source of enjoyment, amusement, or pleasure.

doing things you arent supposed to do!

Something you must not be having right now if you're searching the web for it.

Laughing at the idiots who quote spongebob.