Humongous/hjuːˈmʌŋɡəs/ Definition 1 of 1Pro Tip 1/3Informal Speech Best used in casual conversations or creative writing, not in formal settings. The party had a humongous cake that took hours to finish. Pro Tip 2/3Emphasize Size Use 'humongous' to stress the unusually large size of something to the listener. I couldn't believe my eyes when I saw the humongous statue. Pro Tip 3/3Colloquial Use Recognize 'humongous' as a colloquial term mostly used in North America. They have a humongous house with a basketball court inside!