Quote from Barney in The Three Days Rule
[As Robin arrives at MacLaren's:] Robin: What is this? Marshall: Oh, it's just some take-out from Generro's. I'm bringing it home for Lily. Robin: Oh, that's weird. Holli just texted Ted something about take-out from Generro's. [Barney shakes his head at Marshall] Robin: Wait a second. You sons of bitches! Barney: What? Robin: You're Holli.