1.
morale visit; encouragement gift; visit to those working hard
A visit or gift given to encourage people in the midst of an intense effort, such as during an election campaign, a major project, or long working hours. Originally referred to visiting soldiers at their camp.
選挙事務所に陣中見舞いを届ける。
To deliver an encouragement gift to an election campaign office.
差し入れとして陣中見舞いのお菓子を持っていった。
I brought sweets as an encouragement gift.
社長が夜遅くまで働くスタッフに陣中見舞いとして弁当を差し入れた。
The president brought boxed lunches as a morale-boosting gift for staff working late into the night.
Originally a military term — 陣中 means "in camp" and 見舞い means "a visit (to comfort or encourage)." In modern usage, it most commonly refers to gifts or visits to election campaign offices, but also applies to any group working intensely on a project or event. In election contexts, 陣中見舞い can include monetary gifts, food, or supplies. Note that political donations disguised as 陣中見舞い are subject to legal restrictions under Japanese election law.