What is Blue Berry?
1.
Expression for black people used by whites as "code" when they want to refer to blacks in a semi-derogatory manner without being detected in a group of people. A term frequently used by Asian people.
These Damn blue berries need to shut the F$ck up! I'm trying to watch the movie.
Blue berry
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2.
A slang word for police, or a police car. It's derived from the light bar on the top.
I just blew the light and there aint a blue berry in sight, things are good.