Water Fu
The modern martial art of slow motion fighting under water in a pool, lake or the ocean... Typically exemplified in powerless kicks & punches. However, a master in Water Fu may temporarily blind someone with a splash and possibly deliver a well aimed croch shot that often results in a floating, lifeless carcass.
Take it easy bruh, else I'm gonna break out my black belt in Water Fu and non-ceremoniously kick your swimmer ass.