You are so immature
(Yes, Yes, You're really immature)
You are so immature
(Yes, Yes, You're really immature)

You like to fart and burp all night
and say bad pick up lines
(You've got bad pick up lines)
Won't pull your finger out of spite
I'm sick of your dull mind
(Your games are so behind )

You are so immature
(Yes, Yes, You're really immature)
You are so immature
(Yes, Yes, You're really immature)

You put fake bugs inside my ice
I'm sick of all you've done
(I'm sick of all you've done)
and what is with all your fake mice
Your tactics are now shunned
(Your tactics I have shunned)

You are still immature
(Yes, Yes, You're really immature)
You laugh at gas and slurs
(Yes, Yes, you laugh at gas and slurs)
You like when people hurl
(Yes, Yes, You like when people hurl)

What it makes it worse, is you think that it's cute
(You think it's cute) yeah
A whoppie cushion, now we are all screwed

Why are you immature
Why are you immature

You are quite immature
(Yes, Yes, You are quite immature)
You are so immature
(Yes, Yes, You're really imatture)
Something's wrong in your world
(Yes, Yes, Your mind's a messed up world)

I've made a point of showing you just what you do
(All that you do) yeah
The way your acting, what to do with you. . . .

I hope you change your ways someday Someday you'll be refined
(I hope you'll be refined)
Cause when you try to make us laugh, you seem out of your mind
(Think you're out of your mind)

You are so immature
(Yes, Yes, You are so immature)
It's really so absurd
(Yes, Yes, I find it quite absurd)
You are so immature
(Toot-toot-oh yeah and so am I)