Biff

(Originally posted many moons ago of TOP forum)

There once was a doggy called Biff
Who's best trick was playing a stiff.
Then a long came his mum,
With a huge tin of chum
And he wolfed it all down in a jiff.

Now this doggy was stuffed to the brim
But there's nothing that'll escape him.
He saw mum with cake
and followed in her wake.
Now Biff'll have to go to the gym!

Now Biff has a bit of a tum.
It's as big as a horses bum.
He's now going for runs
And stopped eating sticky buns.
And he'll never forgive pedigree chum!