noun
side ponytail
A ponytail worn to one side of the head, often low and over the shoulder. Common in casual and cute hairstyles.
wasei-eigo (Japanese-coined English), from side tail
今日はサイドテールにしてみた。
I tried a side ponytail today.
サイドテールは簡単にできるアレンジです。
A side ponytail is an easy hairstyle to do.