noun
engagement doubts; pre-wedding jitters
Wasei-eigo from 'engage blue'; refers to doubts or anxiety felt after getting engaged, similar to 'cold feet' before marriage.
wasei-eigo (Japanese-coined English), from engage blue
婚約したけど、エンゲージブルーで不安になることもある。
I got engaged, but sometimes I get anxious because of engagement doubts.
エンゲージブルーを乗り越えて、結婚式の準備を進めている。
We're overcoming our pre-wedding jitters and moving forward with wedding preparations.