godan verb (-ru), transitive verb, intransitive verb
Casual word for speaking, chatting, or chattering. Can be used both transitively (to talk about something) and intransitively (to talk). Often implies informal, friendly, or sometimes excessive talking.
友達と電話で長くしゃべった。
I talked on the phone with a friend for a long time.
彼はいつも自分のことばかりしゃべる。
He always talks only about himself.