Verb
leave someone on read (third-person singular simple present leaves someone on read, present participle leaving someone on read, simple past and past participle left someone on read)
(Internet slang) To read someone's message or messages and not give any response, particularly on an instant messaging application where a user can see whether or not their interlocutor has read their message.
Synonyms: leave someone on seen, leave someone unread, bluetick
My boyfriend left me on read yesterday after I asked him to send me a picture of his dog, which made me very angry!