Lily: Barney, I don't get it. You've called a million girls a million times.
Barney: Yeah, but those were just booty calls.
Barney: On a booty call, you rarely have to even talk.
[flashback to Barney at MacLaren's:]
Barney: [v.o.] Around 9:00 p.m., you say...
Barney: [on the phone] Hey, baby, it's Barney. You busy tonight? Sweet. See you in half an hour? Can't wait.
Barney: [v.o.] But the later it gets, the fewer words you need.
Barney: [on the phone] Barney. Busy? Sweet.
Barney: [v.o.] And by 3:00 in the morning...
[Barney texts a woman "?". She responds "!"]
Barney: Sweet.
[present:]
Lily: A question mark? You got laid off a question mark?