To put someone on blast
American SlangDefinition
To publicly call out, criticize, or expose someone in a way that embarrasses or shames them, often widely or on social media.
Examples
"After the airline lost her luggage and ignored her emails, she put them on blast on Instagram with a detailed post and receipts."
"Don’t put me on blast in the group chat for being late—you could’ve just texted me privately."
"The journalist put the mayor on blast with a thread exposing the gaps between his campaign promises and recent actions."