I could eat a knob at night

Jellyfish

I don't like jellyfish, they’re not a fish, they're just a blob.
They don’t have eyes, fins or scales like a cod.
They float about blind, stinging people in the seas,
And no one eats jellyfish with chips and mushy peas.
Get rid of 'em!

Jellyfish, Part 2

It would be spiteful
To put jellyfish in a trifle

For God's Sake

For God's sake,
me belly ache
The doctor said it’s me kidney He said he’s got to stick a tube up me knob I said you got to be kidding me For God' sake,
knob ache.

http://www.youtube.com/watch?v=mf7YpDYZpao