Spongebob:
What is fun
Let me spell it for ya

F is for friends who do stuff togeher
U is for U and me
N is for anywhere and anytime at all
Sea creatures:
Down here in the deep blue sea

Plankton:
F is for fire that burns down the whole town
U's for uranium... bums
N is for no suvivors when you.....

Spongebob:
Plankton those thing aren't what fun is all about
Now do it like this
F is for friends who do stuff to....

Plankton:
Never, that?s completely idiotic

Spongebob:
Here let me help you
F is for friend who do stuff together
U is for U and me
TRY IT!

Plankton:
N is for anywhere and anytime at all
Sea Creatures:
Down here in the deep blue sea
Plankton:
Wait, I don?t understand this... I feel all tingly inside. Should we stop

Spongebob:
That?s how you're suppose to feel

Plankton:
Well I like it
Let?s do it again
Spongebob:
OK!!
Both:
F is for frolicking through all the flowers
U is for Ukulele
N is for nose picking sharing gum sun-linking'
Here with my best  buddy

(Laughing to music)


Note: Lyrics may be wrong at end verse Sorry!!!
couldnt understand what he was saying correct if wrong