A line from the 1995 film "Friday" starring Ice Cube and Chris Tucker that is becoming increasingly popular for no reason. Just like twerking, it has been around and well established for many years, but has recently become more mainstream as white girls attempt to use it, most often incorrectly and oblivious to its origin.
White girl #1: "Bye Felicia!"
White girl #2: What does that mean?
White girl #1: Look it up on Urban Dictionary.
Black girl: *facepalm*