Light sandal (4-4)
(Other definitions for flipflop that I've seen before include "sandal" , "What may be afoot" .)
(Other definitions for flip-flop that I've seen before include "Sandal held on by a toe-thong" , "Shoe held on by a toe-thong" , "Rubber-soled sandal" , "Informal footwear" , "Light shoe" .)