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1.
European Origin: A person who is not into chicks. Not to be confused with MacDaddy. Can be used as an insult.
Yo Scott, you are such a MacDad
by masterbalzak November 04, 2009
 
2.
Single male parent or separated fathers who spend sad Saturday afternoon access periods living in Macdonalds crying in their Cola as the kids devour their happy meals while dad clock watches till they have to back to mums so they can go and visit "Uncle Steve" aka: mums new fella!
Hey Dan look at the long face of that guy over there!

Poor bugger... counting down the hours before he takes the kids back home again to their mum.

He`s deffo a MacDad
by Upper Class Twit 3 April 04, 2013