bigdickulous Share definition Flag Of or pertaining to persons with large penis, who is doing something ridiculous or absurd. Usually in a positive light. Oh my god! Did you see the engagement ring that my boyfriend got me!? It was SO bigdickulous! bigdickulous by Stellabella May 17, 2008 0 0 Get merch Get the bigdickulous mug. Buy Now — $32.95 See more merch