Animals as verbs
derived from acting like the animal

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ape
badger
bird-dog
buffalo
bug
bull
bulldog
catcall
chicken out
clam up
crab
crane
dog
duck
ferret out
out fox
take a gander
goose
hound
hog
horse
monkey
parrot
pig out
play possum
ram
rat on
skunk
snake
sponge off
squirrel away
weasel
wolf
worm