Dudley Puppy was a plain old mutt
(plain old mutt)
He'd scratch, he'd dig and then he'd chew his butt
(chew his butt)

But when bad guys got too rough
He went to work for T.U.F.F.
And now he's doing secret agent stuff

Refrain:

He's a T.U.F.F. Puppy
T.U.F.F. Puppy
He's a T.U.F.F. Puppy

dog who sticks his nose right where he knows the crooks will be..

Refrain:

He's a T.U.F.F. Puppy
T.U.F.F. Puppy
He's a T.U.F.F. Puppy