godan verb (-ru), intransitive verb
go to a karaoke bar; do karaoke
Slang verb formed from オケ (karaoke) + る. Used casually among friends.
今夜みんなでオケらない？
Wanna go do karaoke tonight?
昨日は遅くまでオケってた。
I was out doing karaoke until late yesterday.
Standard, neutral way to say 'go to karaoke'. オケる is slangy and more casual.
Slang verb formed by attaching る to オケ, a shortening of カラオケ (karaoke).