English Dictionary

subtweet

noun

(Internet, neologism) A tweet (message posted to the microblogging service Twitter) that refers to another user without tagging their name in the message, so that the user being talked about is not automatically notified.

She posted a subtweet about her ex-boyfriend.

意味（1）

(Internet, neologism) A tweet (message posted to the microblogging service Twitter) that refers to another user without tagging their name in the message, so that the user being talked about is not automatically notified.

But it was also a subtweet, addressed to one person but meant for someone else entirely.