noun
fan activities; supporting one's favorite idol or character
Slang term for the various activities fans do to support their favorite idol, actor, or character, such as buying merchandise, attending events, and promoting them online.
See also: 推し
週末は推し活で忙しい。
I'm busy with fan activities for my favorite idol on weekends.
推し活のために遠征することもある。
Sometimes I travel far for my oshi-katsu.