Definition of pissant in English:

pissant

Pronunciation /ˈpisˌant/ /ˈpɪsˌænt/

noun

vulgar slang US, Australian
  • An insignificant or contemptible person or thing.

    insignificant person, nobody, nonentity, non-person, gnat, insect, cipher, pygmy
    scoundrel, villain, rogue, rascal, brute, animal, weasel, snake, monster, ogre, wretch, devil, good-for-nothing, reprobate, wrongdoer, evil-doer

adjective

vulgar slang US, Australian
  • Worthless or contemptible.

    blasted, damn, flaming, precious, confounded, pestilential, rotten, wretched

Phrases

    as game as a pissant
    Australian vulgar slang
    • Brave or foolhardy.

Origin

Mid 17th century (in sense ‘an ant’): from piss+ -ant.