adverb taking the 'to' particle
Mimetic word describing the sound or motion of liquid splashing or sloshing around, often in a vigorous or repeated manner.
バケツの水がジャバジャバとこぼれた。
The water in the bucket splashed out with a slosh.
彼は顔をジャバジャバと洗った。
He splashed water on his face.