Slump/slʌmp/ Definition 1 of 5Pro Tip 1/3Physical Exhaustion Use 'slump' to describe someone giving way under fatigue. After the marathon, exhausted, I slumped against the wall. Pro Tip 2/3Loss of Hope Shows sudden despair or disappointment. Seeing the results, she slumped onto the bench, heartbroken. Pro Tip 3/3Emotional Visual Illustrates a gloomy or dejected posture. He slumped in defeat as the final buzzer sounded.