1 definition by TheRealMickeyD
The act of preforming anal sex in the back of a car with a black man or woman, while the track, "Back in Black," by ACDC is playing through the stereo system.
Tom: Why couldn't you make it to Jordan's party?
Matt: Don't tell him, but I was giving his mom a Black in Back
Matt: Don't tell him, but I was giving his mom a Black in Back
by TheRealMickeyD March 6, 2012