I'm on A Boat

At first glance one may think 'I'm on a Boat' is silly. But in reality it has a message - class structure and the fascination of being able to cross its lines.

"Yeah, never thought I'd be on a boat
It's a big blue watery road
Poseidon
Look at me, oh (all hands on deck)

Never thought I'd see the day
When a big boat coming my way
Believe me when I say
I _____ the  mermaid. . ."