Space Clown Share definition Flag A clown, from space. If you're afraid of clowns, you will be double afraid of space clowns. You're talking not paying any attention, and you run into a guy wearing a Ferengi costume. You both yell "ACK - A SPACE CLOWN!!!" Space Clown by mrcl September 3, 2009 0 0 Get merch Get the Space Clown mug. Buy Now — $32.95 See more merch