Croc sweat

The crocodile seemed momentarily surprised. If nothing else, we would die knowing that we'd confused this monster many, many times.
Croc sweat kept pouring off his body. The brackish stuff was up to the kerb now, up to our ankles. It sloughed into the storm drains but just continued spilling from the croc's skin.
Then I saw what was happening. As Percy raised his arms, the water began swirling counterclockwise.

SoB pg.27