Toss off Definition 1 of 3Pro Tip 1/3Effortlessly Quick Reserved for actions done with ease and speed. She can toss off a blog post in no time. Pro Tip 2/3Not Serious Work Suggests the task isn't challenging or significant. Jack just tosses off his homework. Pro Tip 3/3Casual Attitude Often implies a relaxed approach to the task. He tossed off the idea as a joke.