Starting off his his most well known and most requoted quote:

[While trying to find his possessed dead cousin in a large building] "MATT, WHERE'S YOUR BODY?!?" 

[With The Man] "If you can dream it, we can build it!" "... Andrew, this isn't Tanked, it's high level Spanish stuff." 

[Andrew's spin on "Prison Poetry: By Tyrone Green" performed by Eddie Murphy] "Kill my abusive father, kill my abusive father! C-I-L-L MY ABUSIVE FA-THER."

[To The Man] "How is a folded up old sticker a memory worthy of putting in a sacred keepsake box? Did your favorite Murder Weapon boots step on it or something?" 

[To Steve] "I didn't want a new knife, okay? Just some Mac And Cheese, please." 

[To Matt] "If you really want to be someone, stop sinking so low that you stop becoming anything but a miserable mess. Do something worth living that will make you look like an actual human. Then we'll talk." 

"How many times can one lose at Geometry Dash before wanting to split the phone in half? Five?? Ten?? One time??" 

"If this is the closest we get to watching Anime, I'll savor every minute of it until 2 AM when you're all asleep." 

".... Is this guy... GIVING his ripped out teeth to me? Thanks, weird old man. I'll take them. Maybe they'll even make it five feet before I drop them because they're ROTTING." 

[To The Man] "Dude, sex is weird! Save your weird sex stuff for a non-asexual! Go away!" 

[To Steve] "Dude, you just pulled the covers off my neck! Put them baaaack!" 

[To The Man] "Look, maybe you're right. Maybe I'm just... not real. But if I was fake, why can people I've never really met see me? Why am I so seeable? You're just in denial because she said I wasn't real. But I'm here, okay? Covered in... dust... but I'm here. We're here. And we're not leaving. An Apex Predator doesn't leave his best friend. It's just not right. Especially when he's suffering and needs to know that he's STRONGER THAN THIS." 

[At a "Rich Kids With Daddy Issues" Meeting] "Um... hi... I'm Andrew, I'm 20, and I'm here because Richard was an asshole so I killed him by ripping him apart and stabbing him with knives- wait, NONE OF YOU KILLED YOUR DADS?? .... Wimps." 

"Um, exactly, I would never wear SHORT SHORTS *makes disgusted noises*" 

"Bro, is that Gerald the Foot Demon? GERALD, GO BACK TO BEEZLEBUB, MY FEET ARE ALREADY TORTURED ENOUGH CAUSE IT'S LIKE 20 DEGREES IN THIS HOUSE." 

"No, I don't eat red vines in bed... at least not while you're awake, that is." 

"Dude, that's EXACTLY what I want for my first birthday. Heart porn. Whoopee." 

"I've heard enough about goppledangers!  .... Goppledangers. F*CK ME." 

[Singing "The House of Asmodius" from Helluva Boss] "YoU sInGiNg LoVe SoNgS iN mY lUsTfUl LoUnGe?!?"

"Everywhere I go, there's a snowman staring at me from above. Especially that one. It looks evilllll."