Taffy was a Welshman,
Taffy was a thief;
Taffy came to my house
And stole a piece of beef.

I went to Taffy's house,
Taffy was not home;
Taffy came to my house
And stole a mutton bone.

I went to Taffy's house,
Taffy was not in;
Taffy came to my house
And stole a silver pin.

I went to Taffy's house,
Taffy was in bed;
I picked up a poker
And threw it at his head.

(ed: I *hate* this rhyme - I was born in Wales, and my father - who was born in London - teased me with it all my life! Grrr... )

(ed: and then 'Daffyd Jones the 3rd' sent in this longer version )

Taffy was a Welshman,
Taffy was a thief.
Taffy came to my house
And stole a piece of beef;
I went to Taffy's house,
Taffy wasn't home;
Taffy came to my house
And stole a marrow bone.

I went to Taffy's house,
Taffy was not in;
Taffy came to my house
And stole a rolling-pin.
I went to Taffy's house;
Taffy was in bed;
I took up a poker
And flung it at his head.

Taffy was a Welshman,
Taffy was a thief,
Taffy came to my house
And stole a piece of beef;
I went to Taffy's house,
Taffy wasn't in;
I jumped upon his Sunday hat,
And poked it with a pin.

Taffy was a Welshman,
Taffy was a sham,
Taffy came to my house
And stole a leg of lamb;
I went to Taffy's house,
Taffy was away;
I stuffed his socks with sawdust
And filled his shoes with clay.

Taffy was a Welshman,
Taffy was a cheat,
Taffy came to my house
And stole a piece of meat;
I went to Taffy's house,
Taffy was not there;
I hung his coat and trousers
To roast before a fire.