Skullymunks Share definition Flag Skullymunks is used to call bullshit on somebody who is obviously lying about something. “I climbed Mount Everest”, skullymunks! You’ve never climbed any mountain. Skullymunks by Maestrofade April 23, 2022 0 0 Get merch Get the Skullymunks mug. Buy Now — $32.95 See more merch