You missed the first & most common verse.

Taffy was a Welshman, Taffy was a thief;
Taffy came to my house and stole a leg of beef;
I went to Taffy's house and Taffy was in bed;
I upped with the jerry pot and hit him on the head.

Upped with the Jerry pot gets interchanged
normally
I picked up the leg of beef & hit him on the head