A portmanteau proverb.
"Perverbs" were popularised by the American Harry Matthews in his
Selected Declarations of Dependence in 1977 and have gained a small
but respectable niche among aficionados of wordplay. The word was
allegedly coined by Maxine Groffsky and is presumably a blend or
portmanteau from "perverse proverb". You create one by snapping a
couple of existing proverbs in half and joining the end of one to
the beginning of the other. So you might create "A rolling stone
gets the worm", "Don't count your chickens before you can walk",
"The devil takes the sailor's delight", and "The road to Hell
wasn't paved in a day". One recent writer has used the term for
what he calls "portmantreau" proverbs, those created by augmenting
an existing proverb through adding a single consonant: "Fine swords
butter no parsnips", "Slaughter is the best medicine".
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