fish biting at every cast; hot fishing
Describes a situation where fish are so active that they bite as soon as the bait is cast. Used in fishing contexts.
Today the fish were biting at every cast, and I kept catching one after another at the fishing pond.
Compound of 入れ (ire, 'putting in') + 食い (kui, 'eating/biting'). The exact historical derivation is uncertain, but the term is conventionally associated with the image of fish eagerly taking the bait as soon as it enters the water.