Shagged out is a term often used to describe feeling exhausted or worn out. However, there are several synonyms that can be used in place of this phrase. Tired, fatigued, drained, spent, bushed, depleted, and exhausted are all excellent alternatives to shagged out. These words can be used to describe a range of physical and mental exhaustion, from a long day at work to a strenuous workout. They convey a sense of weariness without being as overly colloquial as shagged out. Next time you're feeling exhausted, consider using one of these synonyms to describe your fatigue.