1, refreshing: After intense dance or music performance, artists will sing or mention mint water, suggesting that something is needed to refresh themselves or clear their heads.
2, quenching thirst and relieving summer heat: mint water is a refreshing drink, which can alleviate the feeling of thirst in summer heat. Mentioning mint water in the song means that you need something to quench your thirst and cool off the heat.
3. Relaxation: Mentha water is considered to have a relaxing effect, so mentioning Mentha water in the song implies that something is needed to relieve stress and relax.