"…‘trebuchet’. 
"
Oh, and my ‘continuation’…
He looked lazily at her lovely brown form through hooded eyes. “So,” he smiled, “Would you like to come up and see my…”
“pencil collection.”
“The greatest invention of all time…”
“… is vasiline, as it stops chainmail armour from chafing”
“vasiline’s over important use is …”
“…ears.”
“Once I was…”
Oh my. Sorry.
“sixteen. I’m not going to make that mistake ever again.”
“I always wanted to be Secretary Of Transportation so that I…”
“…could use the Enterprise’s transporter.”
“Good afternoon! Welcome to McDonald’s! May I take your…”
“…larch-plated confandulum?”
“In a desperate last-minute move to save sanity, morality, and the universe, Sunspace’s propriety leapt down through his neck and throttled his…”
“… spleen, before it could vent any more.”
“The final words of Darth Vader to his son were …”
“…inaudible.”
“You’ll take the high road, and I’ll take the low road, and I’ll get to…”
“… Scotland before ye.
Me and MacBlue-poop were ever want to gae,
On the bonny bonny banks of Loch Lomond”
“She wore an itsy bitsy, teeny weeny, yellow polka dot …”
…sweater to protect her fae thee harsh cal Scottish weather"
"I’m gonna guess Bippys age. I think he’s…
( that one would be unfair for me to answer, but last year I was twice blue_poop’s age )
…Just 17, if you know what I mean.
And they way HE looks is…
“… look here” – thanks to Troy McClure SF for that link 
“It looks like butter, and it tastes like butter, but it’s …”
“margarine, and I’m going to give it out to the kids next Halloween.”
“My imaginary friend…”
“…has a hard time multiplying. He keeps complaining that ‘the angles are all wrong’.”
“And Lo! The Great Goddess did bestow three Golden Apples upon…”
"… Curly, Larry and Moe. The stooges had wished for only two apples, causing them to cry out “You wise guy, well I ought to…”
“Wally, it’s just not the same as it was when your Mom and I…”
“were professional gamblers in Cuba; now, what with that Castro fellow in power, the action has moved elsewhere.”
“I’ve got the coolest car…”