1) A disparaging term representing the unbridled anger of an out-of-control African-American male of the lowest tier of socioeconomic classing.

2) More broadly, the rage of any member of the human species exhibiting said anger.

Etymology: A portmanteau of (ne)gro and (ste)roid rage
Man, let's get the hell outta here, that dude has some serious groid rage!
by eggplantman September 19, 2008
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The effect of warm summer heat on certain species. Incidents of rape, random stabbings and murder tend to increase dramatically when Groid-Rage is experienced.
Your honour, my client was suffering from seasonal Groid Rage and therefore cannot be held responsible for his actions.
by McCeltunstein July 17, 2021
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