mosh UK /mɒʃ/US /mɑʃ/verb 2noun 1forms 3 verb2 •To dance by intentionally jumping into and colliding with other, similarly behaving dancers, and performing other wild or aggressive movements. •(rare) To intentionally jump into and collide with (another dancer) at a concert. noun1 •The moshing style of dancing.We had a great mosh at the gig. formsmoshed · moshing · moshes