Moses Taylor (TV's Frank Wrench) has a gun organization called "Hands Off Our Guns", or H.O.O.G. This is a reference to the pilot episode, where Lindsay held a charity fundraiser for H.O.O.P. (Hands Off Our Penises).
During Tobias's scene at the bulletin board, a sad man looks at his bulletin of the Blue Man Group, and Tobias says they're literally blue. This is a callback to the season premiere "The One Where Michael Leaves" when he viewed the poster for "Blue Man Group" and thought it was a support group.
Sally Sitwell mentions feeling terrible for "whoever it was" whose car burned at the country club, yet later Stan Sitwell mentions his car just having been destroyed by fire. Sally was in the club parking lot, so wouldn't she have recognized her father's car, even burned?
Lindsay: I have the afternoon free.
Lucille: Really? Did 'nothing' cancel?
Lucille 2: You're embarrassed to be with me!
Gob: No, I'm embarrassed to be seen with you!
George Sr.: My back is in knots. I haven't had a massage since prison.
Michael: Hope that was forced ...
Lindsay: I'm going to see if I can get a wrench to strip my nuts. (everyone looks at her) ... I was trying to be sexy, it just got away from me.
Michael: Just find someone else to do your bidding.
Lucille: There is no one else to do my bidding!
Gob: It's called taking advantage. It's what gets you ahead in life.
During Tobias's scene at the bulletin board, a sad man looks at his bulletin of the Blue Man Group, and Tobias says they're literally blue.
This is a nod toward David Cross's last spoken word album where he talks about the overuse and wrong interpretation of the word "literally".
Narrator: In fact, it was People's Choice nominated actor Moses Taylor, famous for his portrayal of the rule-abiding detective Frank Wrench, star of the television show Wrench.
Sledge Hammer was a television detective show about a police detective who was always breaking the rules.
n/a: Peter and the Wolf
George Michael wants to burn the "Peter and the Wolf" record - a musical piece/story by Prokofiev.
Maeby: Jesus called, he wants your "Thriller" album.
"Thriller" is an album by Michael Jackson, who is now presumably on the Christian music bon-fire list.
Moses Taylor and H.O.O.G are an allusion to actor Charlton Heston, who was once President of the National Rifle Association. Two of Heston's most famous roles were Moses in "The Ten Commandments" and Taylor, the main character in "Planet of the Apes"