Spooning the Tuna Share definition Flag To spoon one's tuna is to fist one's vagina. Dave: Do you like spooning the tuna. Greg: I like spooning your mum's tuna. Spooning the Tuna by Mister Shaun June 21, 2008 0 0 Get merch Get the Spooning the Tuna mug. Buy Now — $32.95 See more merch