吐苦水

to have bitter digestive fluids rising to the mouth / fig. to complain bitterly / to pour out one's sufferings

to spit / to send out (silk from a silkworm, bolls from cotton flowers etc) / to say / to pour out (one's grievances)

to vomit / to throw up

bitter / hardship / pain / to suffer / to bring suffering to / painstakingly

bitter water (e.g. mineral water containing sulfates) / suffering / digestive fluids rising from stomach to the mouth / fig. bitter complaint

surname Shui

water / river / liquid / beverage / additional charges or income / (of clothes) classifier for number of washes