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.
YMMV: Crank
Big Lipped Alligator Moment: The power station fight in the second movie, which turns into a kaiju parody with caricatures of the two combatants.
When Venus first meets Bai Ling's character, she throws a tantrum, and his full body Tourettes' starts acting up. Cue twitch dance off.
To a certain extent, the entirety of the second movie, which is much more violent and comedic than the first.
In the climax of the first film, Chev randomly bleats like a goat.
Crosses the Line Twice: Especially noticeable in Crank: High Voltage. Violence against women: Bad. Stripper getting shot in her breast implants, which then ooze out and deflate while she cries: Hilarious.
There are A LOT of Asian stereotypes, especially in the second film. Then again, it is the late David Carradine...
"Many Triads would give the hearts from their own breasts to save Poon Dong. Not me though, fuck that, but many."
"You killed my brother mother fucker, prepare to die."
The entire epinephrine scene, which begins with Chelios running down the street screaming, wearing only a hospital gown, while British speed metal plays in the background.
Designated Hero: Chelios is an exceptionally violent, uncaring individual established to be a mob hitman and he will generally wreck anyone's day at the slightest excuse. The only real reason he's established as the good guy with any clarity is that everyone else is even worse.
MST3K Mantra: Invoked in the beginning of the second film. A news reporter comments on the implausibility of someone (Verona) falling from the sky randomly being "bullshit". His words.