The art of being Pro as in professional, linked with fantastic, therefore creating protastic. Pro in protastic could also be defined as a pro versus a con.
To be so bro-ey that you blow (or bro) everybody's minds; chillin out super hard; an adjective describing the overwhelming need to patronize taco bell at an innabropriate hour.
"did you see scott last night, he bro-ed the last b-pong cup, bro-ed to taco bell, and bro-ed one out to gillmore girls, epically brotastic"