There is a black man and he is having sexual intercourse's with another male. Then he tries to cover up the truth about him being gay, and no one will find out.That is what a down-low brotha means
The uncharted territory of the bandroom that is known for their wild and erratic behavior. But watch out they can get away with anything with the director, and it is a myth they secretly run the band.
Something tasteless or intellectually inferior that is devoid of any intelligence - usually in pop culture. Lacking in refinement and good taste. Often but not always appealing to the absolute lowest common denominator.
"Sorry, Charlie - the second the silly sound effects and music with the low-brow humor start, I'm out the door. No primetime TV for me!"