MAWWORM Meaning of MAWWORM in English ˈ ̷ ̷ˌ ̷ ̷ noun 1. : a parasitic worm of the stomach or intestine ; especially : a parasitic nematode2. : a mealymouthed sanctimonious hypocrite Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012