up the spout Share definition Flag Pregnant. Scottish slang. Used in the best movie ever made, Juno. This is not a food baby. I've taken like three pregnancy tests and I am fo' shizz up the spout. up the spout by Hannah the Superhero January 11, 2008 0 0 Get merch Get the up the spout mug. Buy Now — $32.95 See more merch