$10 Bets - Mike bets Ed to order a Shirley Temple when he goes out with Bonnie Hane for drinks.
Later in the episode Nancy and Molly spoof the $10 bets. Nancy plays Mike, and challenges Molly, as Ed, to call their waitress "fancy pants".
Letterman Reference - Ed's client, Gary, uses the word "gesphyncto" as a synonym for fired. This word was invented by David Letterman.
Ed: (to Carol at her b-day party) Didn't you wish for a deep, long, soulful kiss from Edward J. Stevens?
Kenny: I alphabetized all of these... I started with A, and ended with Z.
Ed: Stuckeyville... the place where broken hearts go to mend.
Shirley: I'm going to spend the entire $15 on curly fries...
Ed: (after the kiss on Bonnie's doorstep) That was the Shirley Temple talking.