Squeeze n slide
This can be used to describe the moment when you put toothpaste on your toothbrush and then go to wet it, but the toothpaste slips of and slides down the drain leaving you with nothing but wet bristles.
Dude 1: “Haha your toothpaste just fell off your toothbrush”
Dude 2: “Ahh yeah it was a squeeze n slide”
Dude 2: “Ahh yeah it was a squeeze n slide”