Play on filthy words.

Everyone has got one
And they can be fun
Genitals?
Genitals!

I would stay clear of eating caniballs.

Your chances are better with a can of worms.

But genitals
Are they not also genitillia

Which is kind of like a margarita
With a bit of gentinal

Ah fun,
To put them in the sun
To let them collect heat
With no friction needed.

Ah fun,
To be an Eskimo
Genitals become cold
Then they are freezing
The male one's fall to the ground
While the female one's stay firmly in place.

Genitals?
Genitals!
Go to the bar have a cocktail,

Hang it on a coat hanger
And be polite so it can not be seen
And drink your drink.

(I hope you are disgusted, I am)