Clug Share definition Flag Clug can mean many things, however is most commonly used to describe someone who is very lackidazical, and absent minded "What is Max doing over there?" "Just clugging. He clugs a lot." Clug by Smallbutmighty01 March 5, 2022 0 0 Get merch Get the Clug mug. Buy Now — $32.95 See more merch