[flashback to Ted, Karen, Marshall and Lily in their college dorm room:]
Karen: What's that thing?
Marshall: That's a TV, Karen.
Karen: Oh, I don't watch TV.
Ted: Totally.
[another flashback:]
Karen: You thought I actually bought tickets to Wrestle Mania? I was being ironic.
Ted: Totally.
Marshall: I know... that you were being ironic. I too am being ironic.
Lily: Let's do this. What?
[present:]
Marshall: That make up didn't come off for a month. I had to meet Lily's parents that way. I've never looked like a bigger jackass.