For the heck of it Definition 1 of 1Pro Tip 1/3Casual Language Used mainly in informal contexts among friends or in casual conversation. I tried sushi for the heck of it at the party last night. Pro Tip 2/3Spontaneity Reflects acting on a whim or without planning, often to indicate a sudden decision. They took a road trip for the heck of it. Pro Tip 3/3Playful Tone Conveys a light-hearted or playful attitude, and shouldn't be taken too seriously. He started singing loudly for the heck of it.