An intestine flusher assembly for internally and externally cleaning an intestine. The assembly includes a central tube having a central tube having a first end and an opposing second end, where the first end has a forward-facing nozzle for discharging water to dislodge fecal matter within the intestine, and rear-facing ports for discharging water to simultaneously push the intestine along the central tube and clean the interior of the intestine. The assembly also includes also includes spreader bars for spreading the intestine as the intestine is moved along the central tube. The assembly further includes spray bars configured to oscillate while spraying to wash the exterior of the intestine.