BUTTON21

A button that says 21? I've seen the vine and it was hilarious but this is just retarded

THE BEST now I can edit my videos♥

If you click it nonstop, it says underwear in a British voice. Your welcome.

Funny if u tap it fast with 2 fingers it says "are u blind?"

Cool as shot this awesome

BEST APP EVER

I LOVE THIS APP I TRICKED MY MOM AND I GOT ON PUNISHMENT FOR A YEAR XDXDXDXDXXXDXDXDXDXDXD

HA! HA! HA! So funny when I told my mom whats 9+l0 it sounded like me

I asked my mom to ask me a math question then i pressed the button then we starded laughing LOL

THE BEST now I can edit my videos♥

MY LIFE IS COMPLETE THIS IS THE BEST APP EVA

I ask friends can they ask me addition prob and i press it and we birst out to laughing

I love it so much more than a cute little kitten

Funny if u tap it fast with 2 fingers it says "are u blind?"

Can you set this as your ringtone

21 fo life homies

This app is rubbish

Funny

THIS IS THE MOST RETARDED APP EVER I WISH I COULD GIVE 0 STARS!!!

This is so mental! That's it!

Cameron x j2015

When I press the button I can prank people

I love it it is so funny

I go by the votes sometimes

All it says is 21 21

What's 9+ 10 = 21

It sucks my brother can do better

This is really funny! Used it in school.

Good job Sloppo Industries

Then a teacher saw me and I went to hell

The 21 kid made this

Would be better if it says the whole thing because just it saying 21 just makes it BORING

Do not download

Vine rules

Its stupid

A button that says 21? I've seen the vine and it was hilarious but this is just retarded

My teacher said find the equation so I said 21 best app

My science teacher says that if u say that our mentally challenged

My teacher said the math book says its 19

I can do the exact same word 21