Flannel House Share definition Flag Trapping air inside a flannel and putting it on the bath water, making a box shape filled with air. "Dude why were you in the bathroom for 2 hours?" "Oh I was just making flannel houses." Flannel House by A_Guy November 20, 2013 0 0 Get merch Get the Flannel House mug. Buy Now — $32.95 See more merch
