Ah, Kiss Saves Santa - Gene Simmons, I believe.
Another try - “Well, you could whore yourself out to fifty fat chicks…” (2 answers here, I believe)
Quagmire, giving Peter a suggestion of how he can get the money to pay for his fishing boat.
‘Uhura’s black?’
Peter, I Never Met The Dead Man
“I feel so deliciously white trash; Mommy, I want a mullet!”
Stewie, of course.
Who was the second person who used the “fat chicks” line?
“It’s my sex box, and her name is Sony!”
One of the kids that got the Christmas presents peter accidentally donated to charity, about a VCR.
‘So, the sex was good, then?’
Stewie, to Olivia in response to having her name on top in the marquee.
"Smoke."
The subliminal advertising guy who worked for the cigarette company Peter became president of. Repeatedly throughout the episode.
‘See, that’s what I do. I ask for a snack and I honk the horn.’ (Might not be an exact quote, but if you’ll get it, that shouldn’t hurt.)
The man in the cigarette commercial from the 1950s who still works for the cigarette company that bought Peter’s toy factory.
“Far be it from me to call you a liar.”
As someone stated earlier, Quagmire, and the old sea captain with wooden pegs for arms and legs.
Oh man… this one is really bugging me… was it something that was said between Stewie and his unborn brother, Rupert?
LilShieste
That would be Brian’s cousin, Jasper (I think that’s his name…)
"Canada sucks."
LilShieste
Peter, at the end of The Son Also Draws.
“In Portugal, I was a cardiologist…”
One of the deck hands on Peter’s boat, whom he offers a bag of Fritos. (?)
(singing) “I hope I get it…”
Osama Bin Laden
“Que?”
A hispanic guy who corrects Brian’s Spanish (while they’re riding in the back of a truck in The Road to Rhode Island, IIRC), but the only English he knows is “that speech and this one explaining it.”
“Look, sis. Sometimes it’s better to tell a little fib than to hurt someone’s feelings.”
The Anus
“splutter Is that the blood of Christ? Geez, he must have been wasted all the time!”
Peter, while drinking communion wine, in both Death Has A Shadow and in Fifteen Minutes of Shame.
“Bring me the Wall Street Journal”
Stewie, to one of the butlers in the episode where they inherit the mansion.
“hahahahahaha…” (probably not the exact number of "ha"s)
Stewie, to a butler. He then orders two other butlers to fight to the death.
“Bloody ‘ell, I’ve gone an’ soiled meself!”