calabazilla

[ kal-uh-buh-zee-uh ]
/ ˌkæl ə bəˈzi ə /

noun

a prostrate vine, Cucurbita foetidissima, of the gourd family, native to southwestern North America, having yellow flowers, round, inedible green and yellow fruit, and an unpleasant odor.
Also called mock orange, Missouri gourd, wild pumpkin.

Origin of calabazilla

1880–85, Americanism; < Mexican Spanish calabacilla < Spanish: squirting cucumber, diminutive of calabaza; see calabash