Shucksigymba
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?
John: Dude! Of Course, you know I'm DTF.
Max: Shucksigymba!
John: Dude! Of Course, you know I'm DTF.
Max: Shucksigymba!