ころっと;コロっと /(adv) (1) (on-mim) sound of something small rolling once (often into a hole)/(adv) (2) easily/(adv) (3) suddenly/(adv) (4) completely (e.g. forgetting)/utterly/(adv) (5) disappointing/(adv) (6) curling up into the fetal position/going to sleep suddenly/EntL2121230/