Green’s Dictionary of Slang

Mac n.2

[abbr.]

1. (Can.) McMaster University, Hamilton, Ontario.

[UK]Partridge DSUE (8th edn) 710: C.20.

2. (also mac and cheese, mack, mackah) a Mac-10 machine pistol.

[US]UGK ‘That’s Why I Carry’ 🎵 I got ready to pull the mack out / [...] / Unloaded the pistol now dirt is now what his dick’s in.
[US]Hip-Hop Connection Jan./Feb. 55: As ‘Mac’, it’s a shortening of Mac-10, a submachine pistol.
[UK]K. Koke ‘Clap Clap’ 🎵 Brap, Tap, Blookum blookum, Blai blai / Mack claps.
67 ‘Live Corn’ 🎵 M got the Mac and it’s sounding like a drum.
67 ‘Today’ 🎵 Suttin garn dead up today / Believe me the mackah will spray.
[UK]G. Krauze What They Was 48: I’m gonna see if I can get the mac n cheese. Rah, the mac n cheese. You can get that yeah?