Mactastic - The act of making or getting a Big Mac so awesome it’s like

The act of making or getting a Big Mac so awesome it’s like a miracle. Only McD’s employees know this word and use it every day.

I did a mactastic and now my life is complete. Or at least my stomach is.

My mactastic was so good, I forgot my name. Then I remembered it while eating.

I did a mactastic and now I’ve earned the title of Big Mac Champion.