sounds like a flan Share definition Flag A more accurate version of Sounds like a plan, because it doesn't sound like a plan, it *is* a plan. Person 1: "Lets go to the movies." Person 2: "Sounds like a flan!" Person 1: "Err...great." sounds like a flan by Thomas Christian April 30, 2008 0 0 Get merch Get the sounds like a flan mug. Buy Now — $32.95 See more merch