Barney: It was Robin. [gasps] "What?" Yes! It was Robin who cried at Clint's song. "But she said..." I know what she said. But here's what she didn't want you to know.
[flashback to earlier at the house:]
Robin: Listen, Barney, I can't stand all these jokes about me crying. If I pretend to reveal that you were the one who cried, will you go along with it?
Barney: Sure.
Robin: I made a mistake letting you go, didn't I? Your penis is enormous.
[present:]
Lily: Oh, dude, you almost had us.
Marshall: You always take it one too far.
Barney: Damn it.