The children's nursery rhyme 'Taffy was a Welshman' has its origins in Celtic Mythology. Amaethon (from which the name Taffy is derived) was the God of Welsh Agriculture. This Celtic God Amaethon was renown for stealing a variety of wild life from the god Arawn, the Lord of the Otherworld. The association between Taffy and the thief is thus explained...

Taffy was a Welshman
Nursery Rhyme lyrics, origins and history

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 marrow 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 took up a poker
And threw it at his head

Taffy was a Welshman
Nursery Rhyme lyrics, origins and history