Top Definition
A type of clip, which holds 10 rounds. The full name of the mag is Taurus PT247 Blue 40 Caliber.
Example from Jadakiss's song Something Else-

You know i like to style on ya, Blue 40-caliber, butterfly doors on the triple black challenger
by Japanirish21 June 21, 2009
8 Words related to Blue 40-caliber

Free Daily Email

Type your email address below to get our free Urban Word of the Day every morning!

Emails are sent from We'll never spam you.