Wiggly Worm

When planting some Rosemary today I came across this large worm, is was so big I thought it was a small Slow Worm, so I did a double take!

There's a worm at the bottom of my garden,
And his name is Wiggly Woo.
There's a worm at the bottom of my garden
And all that he can do
Is wiggle all day and wiggle all night--
The neighbors say what a terrible fright!
There's a worm at the bottom of my garden,
And his name is Wiggly,
Wig-Wig-Wiggly,
Wig-Wig-Wiggly Woo!