pissant

or piss-ant

[ pis-ant ]
/ ˈpɪsˌænt /

noun

Slang: Vulgar. a person or thing of no value or consequence; a despicable person or thing.
Obsolete. an ant.

adjective

Slang: Vulgar. insignificant or worthless.

Origin of pissant

1655–65, in sense “ant”; piss + ant, probably orig. on the model of pismire

British Dictionary definitions for pissant

pissant
/ (ˈpɪsænt) US informal /

noun

an insignificant or contemptible person

adjective

insignificant or contemptible

Word Origin for pissant

C17: from piss + ant