"Woah, cool!" (3)
I believe the answer is:
ooh
(Other definitions for ooh that I've seen before include "Expression of surprise" , "expression of delight" , "sound excited" , "My goodness!" , "Exclamation of delight" .)
I believe the answer is:
ooh
(Other definitions for ooh that I've seen before include "Expression of surprise" , "expression of delight" , "sound excited" , "My goodness!" , "Exclamation of delight" .)