South East Pennsylvania slang for pissed off, irritable, and having a problem with everything and everyone. If someone is acting gressive, they'll be on edge and likely pop off really easy. Usually comes from being humiliated, embarrassed, judged, or just from a shitty day.

Originated from the word 'aggressive'
Jay got schooled by Jim yesterday so he's been acting all gressive.
by KUKT February 14, 2015
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A gressive is a small, troll like animal that sometimes will take over a persons body. When a gressive takes over the host will be likely to attack, hate yoga, become irratated, and most commen...become aggressive.
Me: "Hey Carmella you're being kinda aggressive lately."
Carmella: "I know I was overtaken by a gressive."
by HazardlyProcrastinating February 8, 2017
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Slang, somebody with a progressive slant in politics.
TYT are gressives.
by RoundenBrown August 4, 2021
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