noun
wake reception; post-wake meal and drinks
Refers to the food and drinks served to mourners after a wake (通夜). A traditional Japanese funeral custom.
通夜振る舞いでは、故人を偲びながら食事を共にします。
At the wake reception, people share a meal while remembering the deceased.
通夜 is the wake itself, while 通夜振る舞い specifically refers to the food and drinks served during or after the wake.
Compound of 通夜 (つや, 'wake') and 振る舞い (ふるまい, 'hospitality, entertainment'). The reading つやぶるまい reflects rendaku voicing of ふるまい to ぶるまい.