An onomatopoeic adverb indicating things or people arranged in an unbroken line or stream (e.g., 'lined up in succession'). Often used with と.
店の前に人がずらずら並んでいた。
People were lined up in a long stream in front of the shop.
棚に雑誌がずらずらと並んでいる。
Magazines are lined up one after another on the shelf.
彼は思いついたことを紙にずらずら書き出した。
He wrote down his thoughts in a continuous stream on the paper.