"So cool!" (3)
(Other definitions for ooh that I've seen before include "Exclamation of surprise or pain" , "expression of delight" , "sound excited" , "Expression of surprise" , "Exclamation of delight" .)
(Other definitions for rad that I've seen before include "Unit of radiation" , "measure of dangerous activity" .)
(Other definitions for neat that I've seen before include "Tidy - cool!" , "Tidy and dapper" , "As whisky may be" , "In good order, tidy" , "Tidy and ordered" .)