As best as I can remember it from over 25 years ago

THE TRIFFID sONG

Theres a Triffid at the bottom of my garden,
It's a thing that we do not like at all.
For it ate my little brother and it made a pass at mother
And sister has done something in the hall.

Theres a Dalek and it's trying to rape my dustbin,
And with each embrace the dustbin gives a squeak.
Well the dustbin's overflowing and fungoid plants are growing,
Since my Dalek raped the dustbin man last week.

Theres a Triffid at the bottom of my garden,
It's a thing that we've slowly grown to hate.
So I'll go out and shoot some lead off and I'll shoot it's bleedin head off,
And I'll hope to God it has'nt got a mate.

cheers

Dave