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.
In "Add It Up", Gunther arm wrestles Deuce down to his underwear and beyond. Fortunately, they thumb-wrestled and Deuce won his underwear back.
And this comment by Flynn about Henry:
"We've shared hair gel; he's mine now."
Gunther and Ty.
There was a whole episode dedicated to the relationship they develop while Ty teaches Gunther to be cool, which ended in Ty getting upset when Gunther wouldn't go get pizza with him and then, ultimately, walking off with their arms around each other.
In one episode, they are dared to wear each other's clothes, and Gunther looks extremely happy, even though he's commented that he thinks Ty's dress sense is 'drab'. He then leads Ty off-screen by his tie. Afterwards he keeps touching Ty's waist as they sit around the campfire. It should be noted that he chooses to sit next to Ty and not Tinka, which may be the first time.
It is implied they spend a lot of time with each other off-screen, as evidenced by a few scenes, such as the beginning of Ty's ping pong war with Tinka.
"Shrink It Up" marks the first time Gunther solely and directly addresses a male character as "baybee", that male being Deuce.
Deuce and Ty in "Reunion It Up".
Ty: A little more bro and a little less mance.
And in just about a bunch of other episodes. One episode had them both hold a phone between their hands so they could win it. Deuce had an embarrassing itch on his back, so Ty had to try and scratch it for him... Suffice to say, it was rather awkward, but laced with total bromance.
"Break It Up" is a particularly noticeable example - the pair have a heart-to-heart about how they'll never leave each other while lying in bed together wrapped in each other's arms. This conversation opens with CeCe commenting that Rocky's hospital gown does not cover her butt and ends with them moving their faces together and CeCe wrapping her leg around Rocky. Yikes.
"Egg It Up" is also pretty heavy on the Les Yay. The scene where CeCe finds out Rocky's been working with another smart girl to come up with a project comes across as if Rocky's been cheating on CeCe in another way.
A huge amount of Les Yay in "Embarrass It Up" over Danika. It's moved way beyond subtext at this point.
The vast, vast majority of Shipping Fan Fiction is CeCe/Rocky slash. It's not helped that both Zendaya and Bella share more than a few Les Yay moments in Real Life, leading to the "creation" of "Zendella".
Moral Event Horizon: During CeCe's interactions with Logan. She crosses this by being a jerk to Logan after he fired her for not playing by the rules. To top it all off, she sabotaged his date with Rocky. These actions proved to be so unforgivable that Logan can't stand being around CeCe anymore.
Screwed by the Network: A lot of people are outright flabbergasted as to why Disney Channel would cancel (or more specifically, fail to order new episodes, with the same effect) their highest-rated show. No official reason has ever been given, but the most believable rumors include Disney Channel felt the show was becoming too expensive and/or simply wanted to move onto new material that would better hold the "next wave" of viewers.
Suspiciously Similar Song: A reasonable facsimile of "Bad to the Bone" plays as Rocky enters detention clad in her new "bad girl" outfit.
They Just Didn't Care: Possibly the only explanation as to how a FAMILY show on the DISNEY Channel was able to get away with a joke about eating disorders, which later made Demi Lovato speak out against it (see below).