noun, noun or participle which takes 'suru', intransitive verb
adding someone to one's friends list
Internet slang, now obsolete. Derived from 友達 (friend) + 登録 (registration). Used on early social networking services or messaging apps.
昔のSNSでは、よく友録してからメッセージを送っていた。
On old SNS, we often added each other as friends before sending messages.
You hardly hear 'Thanks for the friend add' these days.