"Supper" lyrics

Let me introduce myself
My villainy is rare
A perirenal scent enough [?]
Perhaps even debonair

Costumed in brown and pink
A lantern at my tail
Just like any other gadabout
Till should I chance to encounter a snail

Ah but I'm a churlish one
With this chloroform
Before I banquet
This deed I must, I must perform

I vanquish you with kisses
A dubious caress
But in truth it is a poison
Which into your mantle I press

And so a profound immobility seizes you
And just one more procedure before I'll be eating you
Liquefaction is a skill which I possess
Oh how I love a good soup, straight from the shell is best