Someone who shows no emotional response to anything, no matter how poignant or stirring. They’re either so repressed that nothing gets through their emotional firewall, or so disconnected from their feelings that even a child’s laugh, a heartfelt poem, a soulful song, or a breathtaking view leaves them completely unmoved. Picture a human equivalent of a flatline on an emotional EKG—zero reaction, just a blank stare.
"I played her my favorite song, the one that makes everyone cry, and she just shrugged—total Emotional Flatliner."
by Raquel de la Roche August 5, 2025

"Oh No! This dude is flatlining. Ignore him."
Becky-, "This guy is hitting on me pretty hard. Should I give him my number?
Kelly-, "He might just be flatlining. Ask him what you told him your name was."
Becky-, "This guy is hitting on me pretty hard. Should I give him my number?
Kelly-, "He might just be flatlining. Ask him what you told him your name was."
by Someguy1984 July 5, 2018

by Plondruchen December 18, 2023
