punji stake

American  

[poon-jee, puhn-] / ˈpʊn dʒi, ˈpʌn- /

noun

1. a sharp bamboo stake concealed in high grass at an angle so as to gash the feet and legs of enemy soldiers and often coated with excrement so as to cause an infected wound.

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Etymology

Origin of punji stake

First recorded in 1870–75; earlier punjee, panja, perhaps from Chingpaw, a Tibeto-Burman language of the Kachins of northeastern Myanmar (Burma) and adjacent areas of India and China; the word is first attested in an account of these people