slugs and snails and puppydogs tails

In eager rapes, and furious lust begot,
Betwixt a painted Britain and a Scot.
Whose gend'ring off-spring quickly learn'd to bow,
And yoke their heifers to the Roman plough:
From whence a mongrel half-bred race there came,
With neither name, nor nation, speech nor fame.
In whose hot veins new mixtures quickly ran,
Infus'd betwixt a Saxon and a Dane.
While their rank daughters, to their parents just,
Receiv'd all nations with promiscuous lust.
This nauseous brood directly did contain
The well-extracted blood of Englishmen.
-Daniel Defoe