can anyone tell me the rest of this please?

[knotsure]

does anyone know where this came from ?

Manchester For Cotton
Liverpool for ships
Bristol too is a famous port
Where many a vessel slips

thanks

[Trillipse]

I can't give any help on the origin, but at the risk of telling you something you already know or suspect, i think it may refer to the popular sexual practice whereby the male is brought to apex via slippery congress between the female's fond front furniture. Bristol Cities 'n'all. Again, apologies if this is something about which you were already clear.