Anything awesome or worthwhile. Used at a Nashville private school called CPA. Another example of CPA Sarcasm. Most likely taken from a combination of the word "Shucks" and the last name of a CPA legend, John Moxygymba. Making Shucksigymba.
Max: Hey man, are we still going to your house for beer pong?
A word used to express a positive or negative emotion. It's very similar to wordslike 'Shit' , 'Shut up' , 'Get out' or 'Fuck' but is a more kid/work friendly version.