sloshed

the adjective 'sloshed' originates from the verb 'slosh', which is an echoic or onomatopoeic word from the mid-19th century, imitating the sound of liquid moving clumsily within a container. by the late 19th century, 'slosh' had developed the sense of splashing or spilling liquid about. the participial adjective 'sloshed' first described something soaked or covered with liquid. its application to mean 'drunk' emerged in early 20th century slang, drawing a vivid metaphorical connection between the unsteady, sloshing movement of liquid and the unsteady gait of an intoxicated person.

the word is a simplex form derived from the verb 'slosh'.