A fecal collection device comprising: a. a barrel having a distal end, a proximal end and defining a barrel passage therebetween; wherein the barrel comprises a tab positioned within the barrel passage; b. a waste drain conduit including a waste drain passage attached to the barrel so that a drain opening is defined between the barrel passage and the waste drain passage; c. an irrigation conduit having a first opening and a second opening where the second opening is adapted to communicate with a source of lavage liquid; d. a trocar plug having a tapered distal end and the trocar plug including a helical groove with a proximal and distal end; e. said trocar plug movably positioned within the barrel passage and configured to prevent removal of the trocar plug from the barrel, said trocar plug movable between: i) an insertion position where the tapered distal end of the trocar plug extends from the distal end of the barrel; ii) an irrigation position where the first opening of the irrigation conduit is in communication with the barrel passage and the trocar plug covers a majority of the drain opening; and iii) a flushing position where the trocar plug covers less of the drain opening than when the trocar plug is in the irrigation position; and wherein the helical groove of the trocar plug is traversed by the tab of the barrel as the trocar plug moves between the insertion, irrigation and flushing positions; where the proximal end of the groove serves as a stop when the trocar plug is in the insertion position and the distal end of the groove serves as a stop that prevents removal of the trocar plug from the barrel passage when the trocar plug is in the flushing position. a. a barrel having a distal end, a proximal end and defining a barrel passage therebetween; wherein the barrel comprises a tab positioned within the barrel passage; b. a waste drain conduit including a waste drain passage attached to the barrel so that a drain opening is defined between the barrel passage and the waste drain passage; c. an irrigation conduit having a first opening and a second opening where the second opening is adapted to communicate with a source of lavage liquid; d. a trocar plug having a tapered distal end and the trocar plug including a helical groove with a proximal and distal end; e. said trocar plug movably positioned within the barrel passage and configured to prevent removal of the trocar plug from the barrel, said trocar plug movable between: i) an insertion position where the tapered distal end of the trocar plug extends from the distal end of the barrel; ii) an irrigation position where the first opening of the irrigation conduit is in communication with the barrel passage and the trocar plug covers a majority of the drain opening; and iii) a flushing position where the trocar plug covers less of the drain opening than when the trocar plug is in the irrigation position; and wherein the helical groove of the trocar plug is traversed by the tab of the barrel as the trocar plug moves between the insertion, irrigation and flushing positions; where the proximal end of the groove serves as a stop when the trocar plug is in the insertion position and the distal end of the groove serves as a stop that prevents removal of the trocar plug from the barrel passage when the trocar plug is in the flushing position. i) an insertion position where the tapered distal end of the trocar plug extends from the distal end of the barrel; ii) an irrigation position where the first opening of the irrigation conduit is in communication with the barrel passage and the trocar plug covers a majority of the drain opening; and iii) a flushing position where the trocar plug covers less of the drain opening than when the trocar plug is in the irrigation position; and wherein the helical groove of the trocar plug is traversed by the tab of the barrel as the trocar plug moves between the insertion, irrigation and flushing positions; where the proximal end of the groove serves as a stop when the trocar plug is in the insertion position and the distal end of the groove serves as a stop that prevents removal of the trocar plug from the barrel passage when the trocar plug is in the flushing position.