Adverb (fukushi), Adverb taking the 'to' particle, Suru verb
in swarms; in clusters
Onomatopoeic or mimetic word
アイドルのコンサート会場に、追っかけのファンがウジャウジャ集まっていた。At the pop star's concert the fans were swarming around the foot of the stage. tediously; slowly
Onomatopoeic or mimetic word
Also written ウジャウジャ