Accidental Pervert: While explaining why he has pinkish sheets on his bed, one of the reasons he gives is "so that [girls] don't suspect that I'm a sexual predator," which is immediately followed up with "WAIT NO- WAIT, I- ...umm, ignore that. Ignore that."
Brought up to eleven in his Skyrim let's play, where Jesse insists on following every fox he sees for no particular reason even though he acknowledges that they almost always lead him into trouble, especially the white ones.
This became a variety of Fridge Brilliance when (after much disbelief among commentors) it was confirmed that the foxes really DO lead the player towards cool things.
Lest we forget the infamous blow up during a Gamestation Podcast during discussion of the morality of day-one DLC: "HOW THE FUCK DO YOU KNOW THAT, YOU COCKGOBLIN!!"
There's been more than a few times in which Jessie and TB have gotten into more than a heated debate about difficulty in games. Though it seems to have died down lately because TB has came out against Nintendo Hard difficulty, it hit its peak when TB announced that he was done playing World of Warcraft due to nerfing of dungeons, which Jessie made a counter video to (which never mentioned TB by name though many could suspect that since TB was the elephant in the room during the debate, Jessie was mainly targeting him with the video).
Final Fantasy XIII seems to be one. Especially Lightning Returns, which sent him on a 10 minute rant.
"Lizzie" (Derkeethus) is described in this way in the Skyrim playthrough, often keeping a straight face in the middle of Jesse's silly antics and mentally retorting to Jesse's bad jokes. But he doesn't actually talk outside of "personality".
Kiskae would like to think of himself as one, making subtle remarks in the chat for anyone with a keen eye during the "RPG Makers" videos and invoking the trope directly with a Shout Out to this very page. But like Lizzie, he doesn't actually talk, and it's difficult to communicate sarcasm through telepathy and texts.
Kiskae arguably qualifies as a Silent Snarker, since 90% of the RPG Makers episodes are Jesse and the crew pissing around while he rolls his metaphorical eyebrows and does the actual work.
Insistent Terminology: He keeps calling Ghostz_eu 'Comrade Creeper' when his avatar is essentially a communist slime. Ghostz used to correct him before but now has given up. He still refers to Lewis' avatar, the same but in a lab coat, as "Dr. Slime", and upon the Fridge Logic being pointed out to him in an episode, it's become evident that he's continuing to do it to promptangry buttclenchesfrom many of the viewers.
Man of a Thousand Voices: Jesse is actually a professional voice actor (having around 4 notable voice personas with the rest being a mashup from them or movie references).
Misplaced Nationalism: Invoked and parodied by the crew (especially the RPG Makers), because of how there's just as many Europeans as Americans working together. Even though they're all good friends having fun, there's very likely to be some mention of another country followed by pointing and laughing. Especially Denmark and America.
Missing Episode: The three lost Terraria videos. All of them had the videos lost (the second and third by accidental deletion on TB's part) but the audio saved, and TB has released the second and third lost episodes (meant to be before episode 32) as an audio podcast. The first one, meant to be before episode 13, has not been released, according to TB the audio is so corrupted it's irrepairable.
National Stereotypes: Numerous are played with. Especially prominent in the RPG Makers series, where half the on-screen cast is from America and an increasing majority are from mainland Europe: they will jibe on stereotypes, such as Omzit demanding that Jesse "give him his money" because of America's debt.
Jesse in return has an exaggerated "Durka durka"-type voice impression of Sweden, Holland, Finland, and even Germany.
Also includes self-lampooning, such as Mike's legendary ironic phrase "Trust us, we're Americans."
Jesse is, unbelievably enough, a 30 year old man who still keeps in step with teenagers today on internet fads. Lampshaded by TotalBiscuit, who is 27 and still more mature than Jesse, in their TerrariaLet's Play.
Further Lampshaded in the 6th Podcast, when Jesse comments that TB sounds like an old man reminiscing on the old days of online play, TB snarks that among he, Jesse and Simon together, he's the youngest male there.
Jesse has started transcending into Man Child territory with the 8th podcast, when he showcased a video by Lucahjan that contained nothing but testicle jokes, and TB starts questioning his maturity.
Later on, in any number of different videos on a variety of games, Jesse would break out a verbal "MISTER CROOOOOOOOWWLEY! BUM BUM BUM!" whenever the name "Crowley" makes an appearance.
"Oh, Garlic! I can use that for crafting!"
His playthrough of Dead Space had him jumping in fright whenever the other two crew members contacted him, eventually driving him to scream "STOP DOING THAT!" at one of them when it happened for the umpteenth time.
Rule34 — Creator Reactions: Jesse knows there is Rule 34 about him and TB, and his response: Write more and add tentacles and Warcraft females. TB's response, meanwhile, is a Flat "What." and declaration of losing the will to live (more-so than usual with Jesse).
Seinfeldian Conversation: Basically the whole Terraria series with TB, and a significant portion of the Saints Row series with Crendor. Ironically, Jesse claims these are his pet peeve when watching gameplay videos, since he thinks the game should be the focus instead of just a background for whatever you feel like talking about.
Self-Deprecation: The 6th podcast (a.k.a. the one with Simon), Jesse wholeheartedly declares that that episode was his 'last day on the internet', himself as 'the American Simon', and that [to Simon] "I'll never be better than you!!"Oh, come on, you know he's lying!
Sore Loser: Jesse does NOT take defeat well. He has stated many times that the primary reason he refuses to play competitive games is because it stresses him beyond tolerable levels and that losing, especially in front of an audience, makes him incredibly depressed.
Space X: Used in the description for his Dead Space series, and occasionally used for some of the enemies in the game. The first game features "space babies" and "space butt" prominently, and the sequel adds "space raptors".
Let's not forget the great Space Butterfly. May its wings flap eternally, as it dreams the world we live in.
In the "Eye of the Creeper" video, SlyFoxHound (from Machinima Realm) drops by to offer Jesse some advice on Minecraft. And also to blow up his shanty. Later, Sly pops in on an RPG Makers Minisode, only to get shot at by arrows as the crew test out their newly trapped puzzles.
The Yogscast did as well for one episode, also trying to give Jesse Minecraft advice.
Straight Man and Wise Guy: Jesse manages to be both sides of this with different people - he plays the wise guy to TotalBiscuit's straight man, but also plays the straight man to Crendor's wise guy.
Lampshaded in the 17th podcast with all three people mentioned above as guests.
TB (Inquiring about Jesse and Crendor's Saint's Row LP): Who gets to play the incompetent one and who gets to be the douchebag? Jesse: Oh, oh! I'm you!I'm YOU! TB: Oh. Jesse: I dunno how it happened, I became you! TB: This is how the pyramid works...
After the first big jump scare in the introduction movie.
"OH SHIT!*Hysterical laughter* Ohhhh, fudge. *Laughs* Ohhh my god, are you kidding me? You guys suck, I hope you understand that."
Too Dumb to Live: In Amnesia The Dark Descent part 22, Jesse tries to climb inside of and close the doors of an iron maiden. And then he tries to do it again so that he could read the text that appears upon clicking on the thing normally. Not 5 minutes later, he tries to jump inside of a brass bull. Lampshaded by the Co-Dependent girls on both occasions.
The Uriah Gambit: Jesse attempts one of these in Part 34 of his Terraria Let's Play, luring a Wyvern into combat in an effort to kill TotalBiscuit. This being Jesse, however, it backfires, with the Wyvern murdering Jesse twice and wreaking havoc within the duo's base.