the dirty dozens

the dirty dozens

An informal spoken-word contest in which one trades insults with someone else about each other and each other's family members, especially their mothers, typically in front of a group. The insults are not meant to be taken seriously. Exclusive to African-American communities. Primarily heard in US. You want to shoot the dirty dozens, son? We'll keep it light, unlike yo' mama, who's pushin' a ton! Playing the dirty dozens is a tradition in this hood.
See also: dirty, dozen
Farlex Dictionary of Idioms.

the (dirty) dozens

n. a game of trading insulting remarks about relatives. (Originally black.) Freddy is out giving the dozens to Marty.
See also: dirty, dozen
McGraw-Hill's Dictionary of American Slang and Colloquial Expressions
See also:
  • the dozens
  • play the dozens
  • shoot the dozens
  • signify
  • you can dish it out, but you can't take it
  • hello pot, meet kettle
  • hi
  • hi pot, meet kettle
  • each
  • needle (one) about (something)