“So we’ll just blurt out random things?” Mina asked. “Like the fact that I can’t eat sandwiches not cut down the middle?”
Snickers rose from the class as she turned a bright red.
Aizawa sighed. “Not exactly. The quirk is a weird mix between a truth quirk and a prone to suggestion quirk, thanks to the boy's parents. It means you’ll be under the effects of a normal truth quirk, but you also won’t have the ability to keep yourselves from oversharing.”
“So we’ll all be spouting fucking word vomit like Deku?!”
“Yes, Bakugou. Fucking word vomit.”
—
Or
Class 1-A is hit by a very powerful truth quirk, and lots of things come out. Some things are quite harmless - quite the opposite, really - others are quite funny, and some open wounds that never really healed.