Surfer's curl (4)
I believe the answer is:
wave
(Other definitions for wave that I've seen before include "Roller; a gesture" , "Flourish" , "Breaker; hand gesture" , "It may be permanent or Mexican" , "Billow" .)
I believe the answer is:
wave
(Other definitions for wave that I've seen before include "Roller; a gesture" , "Flourish" , "Breaker; hand gesture" , "It may be permanent or Mexican" , "Billow" .)