Ｕターンラッシュ

noun

post-holiday return traffic jam

Refers specifically to the heavy traffic congestion that occurs when many people return home at the end of a multi-day holiday period, such as Golden Week, Obon, or New Year's. The term is a wasei-eigo compound of 'U-turn' and 'rush'.

wasei-eigo (Japanese-coined English), from U-turn rush

• ゴールデンウィークの最さい終しゅう日びはＵターンラッシュで高こう速そく道どう路ろが大だい渋じゅう滞たいした。

  On the last day of Golden Week, the expressways were heavily congested due to the post-holiday return rush.

• Ｕターンラッシュを避さけるために、一いち日にち早はやく帰かえることにした。

  To avoid the return traffic jam, I decided to go back a day early.