q: you want to go to the partai tonight and do it big?  a: dude, i can't, i am training for a marathon, i am starting a 30for30
the challenge of going 30 days and 30 nights without drinking any alcoholic beverages
"q: you want to go to the partai tonight and do it big?  a: dude, i can't, i am training for a marathon, i am starting a 30for30" What is the definition of "30for30"?