hognose snake

[hawg-nohz, hog-] /ˈhɔgˌnoʊz, ˈhɒg-/
noun
1.
any harmless North American snake of the genus Heterodon, the several species having an upturned snout and noted for flattening the head or playing dead when disturbed.
Origin
1730-40, Americanism; hog + nose
British Dictionary definitions for hognose snake

hognose snake

/ˈhɒɡˌnəʊz/
noun
1.
any North American nonvenomous colubrid snake of the genus Heterodon, having a trowel-shaped snout and inflating the body when alarmed Also called puff adder