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1 definition by DeeVee585

 
1.
The act of talking about your Mac computer so joyously it seems like you get the same amount of joy from jacking off.
Meghan - Did you hear, James got a Mac Book and an I-touch?

Tom - Yes, I heard. James was Macing off in my ear for the better part of an hour about how awesome his new Mac is.
by DeeVee585 September 02, 2010