A phrase used (and probably originated) by the most rockin, rollin, skanking band of insaneness, The Aquabats. Super Rad is a name of one of their greatest and earliest songs.
The phrase Super Rad is a pretty fair way of expressing divine awsomeness.
2) " Hey man did you see Jerry's new shoes, well i must say they are exquisitly Sper Rad"
3) Tell your mom, Tell your dad, We were Super Rad