オフ会

オフかい

(in-person) meetup (of members of an online community); IRL meetup; offline get-together; offline gathering

Also written ＯＦＦ会

Meaning

n
(in-person) meetup (of members of an online community); IRL meetup; offline get-together; offline gathering

Example sentences

オフ会ではお会いできて嬉しかったです。

I was very happy to see you at the offline-party.
２人っきりでデート・・もとい、ＯＦＦ会だと思ったけど、そこまで甘くもないよな。

So I thought my date, er rather, offline-meeting was going to be just me and her but things aren't that easy.