Alternate Universe: In which everyone has goatees. The comic is also "mirrored" (hoHO), that is to say, the standard comic image is flipped left to right before dialogue (and goatees) are added.
Alt Text: Used for comments or additional punchlines. The strip titles (only found on the archive page and feed) and "contact" links for each strip serve similar purposes.
Chekhov's Gun: Explained in this strip of the "Literary Technique Comics" series. May involve Pop-Tarts.
Choose Your Own Adventure: "CYOA" that amusingly features a But Thou Must. A later guest strip by Andrew Hussie features T-Rex attempting to do an animated strip version of a CYOA, with Dromiceiominus and Utahraptor discussing with him about the problems with handling a CYOA in said format. It falls apart in the fifth panel, where T-Rex and Utahraptor end up carrying their conversation through the panel shifts. In case you want to read the whole thing at your own pace, here you go. Click the swf(image) after clicking the link and then use the left and right arrow keys (on your keyboard) to navigate.
Continuity Nod: After espousing the benefits of having a truly gender-neutral third person singular pronoun (and deciding that 'thon' sounded coolest) T-Rex uses it in a blink-and-you'll-miss-it way later on referring to gender-neutral babies.
About Interacting Socially: This can be tricky! You want to be friendly, but you don't want to come on too strong. My best advice is to carefully observe others, and to relax!
A God Am I: T-Rex swaps places with God for about 2 minutes, until God forces them to swap back after realizing much to his disgust that T-Rex's mouth tastes like T-Rex spit.
And just when T-Rex had figured out the controls too >:|
Great Way To Go: When something is sad—like death—but also awesome—like an arrow managing to hit something not even the size of a quarter when dropped randomly from a plane—it is sawesome.
A Hell of a Time: In Hell you can play video games and do whatever you want, but you have to sing songs with all the lyrics replaced by "party".
Just Testing You: God asks T-Rex where wind comes from, and then defends himself: "UM OF COURSE I KNOW I JUST WANT TO SEE IF YOU DO"
Lampshade Hanging (every once in a while, a joke about the parameters of the comic, eg here or this one lampshading the lampshading.) This was explained/parodied in this strip, also from the "Literary Techniques Comics" series.
Painting the Fourth Wall: God talks in BOLD ALL CAPS. The Devil meanwhile speaks in BIG RED LETTERS, and the raccoons and cephalopods ARE UNNERVINGLY ITALICISED.
sometimes i imagine my life where i write the same comics i've been writing, but instead of publishing them online i put them in a big stack, or, you know, wallpaper my house with them and never invite anyone over. hah! WHO IS THE CRAZY ONE NOW
Satan: One of the odder incarnations of the Adversary in fiction, he's a nerd obsessed with Video Games whose voice comes in from the bottom of the panel. Like God, he talks in all-caps without punctuation.
Toronto's politicians and tourism board will look up and shout, "Boo hoo hoo we can't increase tourism and we've never even tried calling ourselves 'Omega City, Where It's Always Two For One Tacos', tell us what to do, Ryan" and I'll look down and whisper, "No."
Straight Gay: Utahraptor (and by extension... T-Rex? The very first story arc involved the two having sex ... somehow). It's not a big deal, and is seldom mentioned. T-Rex is probably bisexual; he and Dromiceiomimus have also had dinosaur sex. Then again, T-Rex doesn't remember the event, and questions if it really ever happened. (Non-consensual dinosaur sex?) We're pretty sure that time travel was involved. Word Of God confirms that Utahraptor is gay but "doesn't go on about it that much because he has interests outside of being gay?".
T-Rex: "I am a new man, cats and kittens!" (title: FUN FACT: i do some translating in the comics. t-rex originally said "i am a new tyrannosauroid, protomammals and juvenile protomammals!")