Here are a few I came across that always cheer me up:
"I'm like butter baby, I'm on a roll."
A good friend will bail you out of jail, but a true friend will be next to you saying "Damn, that was fun!"
"Believe me, Mike, I calculated the odds of this succeeding against the odds that I was doing something incredibly stupid...and I went ahead anyway." --Crow, Mystery Science Theatre 3000: The Movie
If history is to change, let it change!
If the world is going to die, let it die!
If what I am about to do causes me to vanish...
Then I will be amused!!
Go, Lavos!!
--Magus, Chrono Trigger
Some RedVsBlue ones:
"You kidding? Women are like Voltron, the more you can hook up, the better it gets." --Tucker
"Okay... Church... is trying... to get... a translator... so... we can talk... to... each other.
Tucker, The enourmous alien doesn't speak our language. Speaking slowly is not gonna help.
What? I was talking to Caboose." ---Tucker to Caboose, Church
"You know, I learned something in my travels. 'No matter how bad things seem'--
it can get worse.
--No, 'No matter how bad things seem; It can't get any better, can't get any worse. because that's the way things fucking are, get used to it nancy. Quit your bitching...'
...So Church, where have you been this whole time?
You want the long version? or the short?
I'll take the easy version please.
Oh, I want to hear the long version, but can you do me a favor and tell it in three parts?"
--Church, Caboose, Tucker, and Sarge