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piss·antalso piss-ant (pĭs′ănt′) Slang
1. One that is insignificant.
2. Obsolete An ant.
Not important; insignificant: "Some pissant Texas court wants to make [the company] pay ... more than $10 billion in reparations" (New Republic).
[Modeled on pismire.]
an insignificant or contemptible person
insignificant or contemptible
[C17: from piss + ant]