An achieved level of greatness so potent, that it becomes dangerous to swim or wade in nearby waters. Hence the "JAWS"ome, paying homage to the famous, giant shark.
In street culture, jawsome is usually tagged with a drawing of a shark that bears a resemblance to Brobee from Yo Gabba Gabba. It was speculated that it was how the roaming inner-city tropes of retards marked their territory, but now scholars believe that it's just the stupidest fucking thing ever.
There's been a recent increase in shark attacks because you're jawsome.
Don't do anything too jawsome, or the daycare field trip to the beach might end in a watery grave.