eel sauce Share definition Flag usually used on sushi this sauce which millions have eaten is made up of the gooey brown stuff that comes out of an eels rectom. RRR RRR. Yes good job jerking him now lets eat the eel sauce. eel sauce by vkp December 24, 2007 0 0 Get merch Get the eel sauce mug. Buy Now — $32.95 See more merch