noun
long homeroom; extended homeroom period
A school period longer than a regular homeroom, used for special activities, assemblies, or non-academic events. Common in Japanese junior high and high schools.
See also: ホームルーム
今日のロングホームルームでは、文化祭の準備をします。
In today's long homeroom, we'll prepare for the school festival.
ロングホームルームの時間に、進路指導が行われた。
Career guidance was conducted during the extended homeroom period.
ホームルーム is a regular short homeroom period, while ロングホームルーム is an extended version for special activities.
Wasei-eigo (Japanese-made English) from 'long' + 'homeroom'. The term is not used in English-speaking schools.