Definition of subtweet in US English:

subtweet

noun

informal
  • (on the social media application Twitter) a post that refers to a particular user without directly mentioning them, typically as a form of furtive mockery or criticism.

    ‘while he didn't include Smith's Twitter handle, that didn't stop Smith from seeing the post, taking umbrage, and firing off a subtweet of his own’
    • ‘Hashtags are a discovery tool, while subtweets are a category of tweets that often purposely evade easy discovery.’
    • ‘His speech was like one extended subtweet; he repeatedly called out unnamed colleagues as cowards.’
    • ‘If you want to be really sneaky, fire out some subtweets.’
    • ‘The problem's not with her mentioning religion. The problem's with her doing it in a passive-aggressive subtweet.’
    • ‘Instead of being confrontational, subtweets are sneakier - they're not the locker room brawls of Twitter, they're the cruel locker-side whispers.’
    • ‘Twitter is too literal; even their subtweets can be immediately obvious.’
    • ‘The subtweets were kind of a funny interaction between two NBA bigwigs who come from opposite sides of the social media spectrum.’
    • ‘The perfect subtweet is one that has every reader silently fretting that it's about them, yet remains ambiguous enough that nobody dares ask if they were the target.’

Origin

Early 21st century: blend of subliminal and tweet.

Pronunciation

subtweet

/ˈsəbˌtwēt/