Top Definition
to be extremely rude and impolite
the fugnacious girl was giving my sister dirty stares when she was choking and having a coughing fit.
by pugs to the world June 28, 2010
1 more definition
Someone or something so disagreeable that they are a step higher that pugnacious. Can also be rude and insincere.
The woman showed how fugnacious she when she went on a diatribe against her husbands lack of ability to understand her pms. She screamed and scratched his eyeballs out.
by blumehauser November 29, 2010

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