1 definition by Foobar Luckypenny
1. To take action unilaterally, and then blame others if such action has negative consequences. 2. To do physical harm to inanimate objects in anger or frustration. 3. To mess up.
1. If you need to do something, just Mac so you avoid getting in trouble.
2. Get angry! Mac that phone!
3. Wow, you really Macced that up didn't you ya retard?
2. Get angry! Mac that phone!
3. Wow, you really Macced that up didn't you ya retard?
by Foobar Luckypenny June 17, 2008