This document discusses expulsion fouls in men's lacrosse. Expulsion fouls include deliberately striking or threatening anyone on or near the field, refusing the authority of officials, using threatening or abusive language, and flagrant misconduct. If an expelled player commits an expulsion foul, their team must serve a five minute penalty with a player in the penalty box. After a game with an expulsion foul, the head referee must file a report indicating if further action is needed, which will be handled by the governing body.