Doo Doo Smooch Share definition Flag To apply lipstick to your butt hole and give someone a kiss with it usually while they are passed out. "What girl was kissing my neck last night?" None! You passed out and we doo doo smooched you! Doo Doo Smooch by big bert13 March 1, 2011 0 0 Get merch Get the Doo Doo Smooch mug. Buy Now — $32.95 See more merch