A technique in rap in which the emcee spontaneously produces rhymes with the beat. Rather than writing down lyrics, the rapper comes up with them while he is rapping. This is a talent which is sorely lacking in a lot of commercial rappers. Freestyling is how most emcee battles were decided on the street in the early days of hip hop. It is a form of occasional poetry, an art form which was practiced by Henry Wadsworth Longfellow and his contemporaries at get-togethers.