Frame Trap

In fighting games, a frame trap is when you force your opponent into a situation where they have no way of escaping your next attack. It can be done by attacking twice quickly, so that if they try to punish or I-frame the first attack, they get hit by the second.

"Do you know why I'm mad?"
"Woah, nice frame trap!"

(If you know why, they wonder why you haven't done anything about it yet, but if you don't know, they'll then get mad at that. There is no way to avoid the attack.)