These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
He (jokingly) implied that Rick Santorum was a Star Wars character.
Suggested the Polly Pockets "Cutants" line of toys was the result of Polly turning into a NaziMad Scientist, experimenting on animals until she could get ahold of some "roofies" and a few human test subjects.
Siri is always interpreted by him as a racist, due to being specifically designed for use in the US more than the UK. Even when being questioned about said uselessness.
Invoked twice for "Chef Excellence" (with the first example lampshaded by Stuart when he notes that Chef Excellence doesn't have a character to begin with since he doesn't exist)...
The Hero: Chef Excellence is a chef-themed superhero out to stop the evil Chef Ineptitude (Ainsley Harriot) from absorbing the souls of the Chefs Tongue (famous UK health food expert Jamie Oliver), Hair (Gary Rhodes), and Rude (GordonRamsay) to form Chef Pestilence (Marco Pierre White). To save the day, Chef Excellence needs to store the Chefs in his patented Stay-Fresh Bags.
The Failure: In puppet form, Chef Excellence is a pathetic waste of a man after being replaced on the Stay-Fresh bags by the also-fictional Max Hoffman. He's taken up a fondness for gin as he attempts to reclaim his title through cheap dishes for Stuart, and is known to have panic attacks when Hoffman and/or his bags are brought up. This version appears more.
Audience-Alienating Premise: Well spoken man crouches behind camera tripod and films his hands fiddling with electronic pound shop rubbish.
Big Lipped Alligator Moment: In his Huge Screen v.2 review, an advert comes on for "Breakfast Mess", despite having said that his videos don't use advert breaks.
The Easter Bunny Jump Scare from around halfway through his Easter Tat review.
THE GOOSE, which for some odd reason, plays a badly-looped, distorted extract of "I Like It" by Solid Base.
Ensemble Dark Horse: The Godmonster of Indian Flats seems to be very popular, as he's had to address why there haven't been more of him. It's because he was scarcely in one movie. He hopes to grow a guinea pig into a new one.
Quincy, the Caterpillar who sings obscure Beatles songs, is also pretty popular.
And there's the Excellent Darkhorse himself, Chef Excellence.
Freud Was Right: His video on old joysticks seems prone to some vaguely sexual-sounding phrases, to the point where this likelihood is lampshaded in the video description.
The microwavable pizza snack gets hyped up as this as well. As Stuart himself says, "NOT RECOMMENDED".
He proclaims the German creme egg-lookalikes to be the most disgusting Poundland food yet, and then whilst wondering what was going on (as he'd expected them to at least be OK because even they couldn't screw up something that simple), he notices a maggot lying on one of them. It turns out to be a fake planted there by a friend, but still.
Replacement Scrappy: Max Hoffmannote Who is fake, in case you're wondering, who replaced Chef Excellence on the "Stay Fresh x Bags".
Schmuck Bait: In a video he made for Bad Teeth (aptly titled *sic* "DO NOT GOOGLE THIS" which talks about Shock Sites - come to think of it, every single site mentioned in the video is schmuck bait in their own accord), he mentions to never search Google for the term "Melon Wedding". If you ignore his warning and do so, google gives you a webpage owned by Ashens that chides you for specifically ignoring him and googling said phrase.
Suspiciously Similar Song: The Pop Stations do this a lot with horrible beeping renditions of well known music. This ranges from songs like "The Entertainer" and Beethoven's "Ode to Joy" to the theme from the original Super Mario Bros. and The South Bank Show theme. They rarely go unnoticed by Stuart.
The Woobie: The girl in the Stock Clearence Specialnote The one who was turned into a toaster.