When one pimp nods to another pimp in recognition of his status as a pimp
Yo i saw my man Brandon walkin down the street with two fly ladies so i gave him the pimp nod
When you cock your head to one side, twist your your mouth to the opposite side and nod slowly. Usually accompanies a gang sign or some other ghetto hand gesture. Used mainly by rappers in their videos or by guys trying to impress the ladies.
Yo did you catch Trevor, he was tryin' to give Cherisse the pimp nod but she flicked him off