What rhymes with 21?

Have some fun

Chew some gum

Gee I'm dumb

Suck your thumb

Don't be a bum

A hot dog bun

Old enough to buy a gun (you said 21)

I think I'm done

I had some fun! plenty, hon. Money, gun. Funny, bun. There are lots! What FUN What's done must be DONE I'm going to LONDON
Something Fun.