CSMDS Share definition Flag Can't See My Dick Syndrome: When someones stomach protrudes so far that they cannot see their own penis; without a mirror. Fat Guy: "Man, I'm depressed." Friend: "Why's that?" Fat Guy: "I found out I have CSMDS." CSMDS by DonkeyPuncherOG January 27, 2016 0 0 Get merch Get the CSMDS mug. Buy Now — $32.95 See more merch