The one I say the most-
“Eve-Ah?”
"Oh. Mmmm, yeah. Each flavor was totally unique!
“Hey _____, have any sweets, candy? Cupcakes?”
I find myself saying that a lot. 
One I’ve heard around my house a lot lately is “Whatever you do, don’t eat the pistachio ice cream!” XD
^Haha, same here. That one and “No no, wasabi”. We were repeating both of those endlessly at lunch today.
Oh yeah, and “Finn McMissile? But you’re dead!” “Then this shouldn’t hurt at all.” 
One I’ve been saying lately is “P.P.S. That’s funny right there.”
There’s also “Okay, I’m officially freaked out.”
Today I left a note on one of my co-worker’s desks that said “Just Keep Swimming!.”
Haha, that’s awesome. 
Mr. Fish, did you die?
Just keep swimming
Fish are friends not food!
I am the greatest good you are ever gonna get!
Let’s not start by pointing fingers,shall we…?
I find myself repeating “I killed a man… with this thumb!” all the time.
^That one is fun to say. Honestly, I yell squirrel, literally every time I see one.
Haha, me too.
“Es-Ca-Pay!!!”
“The name’s Mater, like Tuh-Mater.”
“Subject is commonly known as ‘Soil’, ‘Dirt’, or ‘Earth’.”
Mt. Wannahockaloogie chant.
“Mine! Mine! Mine!”
“Oh, a symphony of crackles! Only great bread sounds this way.”
I like to repeat these to myself a lot…
Great list! 
Oh yes, I say that one too!
That’s a hard one. I used to say a lot of Pixar phrases back then, but not much now.
Tonight in the jazz ban that I play in we did a song called I’ll See You In My Dreams, and it made me think of Ken from Toy Story 3. “I’ll see you tonight… in my dreams.”
“Quiet, musical hog!”