Charlie Sheen, Chuck Norris, and Jayne Cobb.

(This grew out of a conversation about Charlie Sheen)
Truman: Do drugs make people crazy, or do crazy people do drugs?
Gwen: Debatable. What came first, the phoenix or the flame?
Truman: Chuck Norris.

Truman's impression of the internet giving birth to Jayne Cobb: HUAAAAAAAAAH! HUAAAAAAAAAH! HUAAAAAAAAAH! Jayne.

Kidneys and Ashes

Mom: Did you hear about the kid who sold his kidney for an ipad? It's not good; you can survive with one but you really need two.
Ethan: What about a kidney and an ipad? It could filter stuff for you...
Dad: There's an app for that.

Truman: Did you hear about the guy who broke into a house looking for drugs and ended up sniffing someone's ashes?
Dad: Well if they were Keith Richards' ashes it might have worked.

Morton's Toe

Truman: Your genetics are always poking holes in my socks!

Also,

Truman: Koreans, awaaaaaaaaaaaay!

One Last Overheard at the Highams. Maybe.

John: Remember, lip wrestling is your friend.

France! And...Booboozillas?

Truman and Gwen Team Effort:

Welcome to France class!
You mean French class?
No, I mean France class.

Gwen: I definitely don't miss the vuvuzelas.
Mom: The what?
Gwen: Vuvuzelas.
Mom: Oh, I thought you said 'booboozillas.' They sound scary.

Snow Cones Overheard

Gwen: I'll have the little one, please.
Truman: What? You mean you don't want Mt. Saint Snowcone?

Catholic Chicken?

Katrina: Let's get the rosary chicken!

Gaga

Gwen: Her music is a guilty pleasure.
Jordan: Yeah, more guilt than pleasure.