A word used mainly in Scotland- when you buy some soda from mc donalds and drink half of it, and then fill it half way up again with a spirit of your choice. For those who want to get smashed on a lothian bus with a fabulous disguise.
Maackin should never be done alone.Lame.
"shit. i completely forgot i was maackin last night.I guess it was just like i was sipping soda...but then I passed out.."