A prerogative phrase used by reactionaries, far-right
conservatives, alt-righters,
white supremacists, white nationalists to mock African-Americans who claim that they've been victimized by police abuse of power. Also more broadly used a prerogative insult to refer to any
African-American in any hypothetical criminal situation.
The racist slur simultaneously implies that African-Americans cannot speak proper English and that they are always criminal. The same people who like to use this word are the same people here downvoting any submission that actually defines this prerogative as what it is.