A fatigue party refers to a gathering or social event held by military personnel who have returned from a tiring mission or deployment. Some synonyms that can be used for a fatigue party include rest and relaxation party, welcome home party, decompression gathering, homecoming celebration, and deployment reception. These terms all describe the same event of welcoming military personnel home and providing them with a chance to unwind and relax after their service. Such gatherings are intended to boost morale and provide much-needed respite for the veterans before they resume their daily routines and responsibilities.