a game of surprise involving knocking things out of another person's hands.
Dylan: *walks by with his books*
Trey: *knocks them out of his hands* "mac mac"
Dylan: "Shit" *picks up books again*
(repeat as many times as wanted)

Mariah: *eating a box of Cheez its*
Sara: *knocks them out of her hands* - "mac mac"
Mariah: "Damn it Sara"
by Kizzy-boo February 26, 2011
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slang name for rapper Mac Miller usually used by fan girls
omg I got tickets to see baby mac mac! <3
by chaaaark February 26, 2012
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