noisily, clattering, with a repetitive noise / repetitively, repeatedly, in succession / in a bustling manner, hurriedly, quickly

to flap, rattle, thrash, flounder

a rattling, flapping, a flapping sound, thrashing / (kabuki) a sound effect made with wooden clappers / a three-wheel vehicle; a motorcycle

暗中: the situation in the dark

円柱: cylinder; column

爬虫: reptile

(slang) going to or being graduated from the same middle school (中学校)

(archaic) Short for と言う (to iu):

a squeak (sound made by mice) / a chirp (sound made by small birds) / sound made by sucking liquid

(somewhat childish) a kiss