Lily: Come on, Barney, you just... You just got out of an honest to God relationship. You're a real boy now. You can't go back to these cheap tricks.
Barney: Cheap tricks?! Not one of these is a cheap trick. Except for "the Cheap Trick".
[flashback to Barney at MacLaren's with long blonde hair, wearing a vest and a red bandanna:]
Barney: I'm the bass player for Cheap Trick.
[present:]
Barney: And even that one involves expensive hair extensions.