This sound is from Uncle Ruckus Soundboard

Ruckus is a fictional character on the American animated sitcom The Boondocks. He is also internally racist, repeatedly proclaiming his love for the white race and disdain of the black race. He even identifies as Caucasian, saying he suffers from "reverse vitiligo" He was born July 4, 1939.
See also: The Uncle Ruckus Reality Show, Huey Freeman, Uncle, Gary Anthony Williams, List of The Boondocks characters, The Boondocks (season 2).