doing something that makes you a man, putting two 9's together one backwards and one normal, makes a penis and balls
kid 1- "shit man, hes gonna kick my ass."
kid 2- "naw son, ill kill him. time for me to earn my nines."
kid 2- "naw son, ill kill him. time for me to earn my nines."
by nine five October 20, 2009
Get the earn my nines mug.