If Becky's birthday is on the 8th and she is a Pisces then that means that her birthday is in March.
Becky is never mentioned by Nicky or anyone else before this episode.
Milo: C'mon, PA, everyone knows that Becky's birthday is on the 8th. Pisces!
Milo: Their prices are clinically insane!
Mrs. Little: Becky could never bench-press more than twenty pounds.
Nicky: Is that why I always had to carry in the groceries?
Young Nicky: Why do you keep hitting me with that white, spherical object?
Milo: Nicky, seeing Flaming Snot's 'Intimate Acoustic' tour is my life's goal. If we don't get tickets, I will have failed that goal.
Nicky: Okay, are we swan-bonding, or what?
Nicky: I'm afraid of swans, all right?!
Pepper Ann: Have you tried picturing them in their underwear?
Toy Swan: Swanie wants to plaaaaaay!