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The moment when the openly good-guy teachers drive Snape from Hogwarts is a brief moment of apparent triumph, but the characters know Voldemort is on his way, and the reader knows the book is careening toward an epic Final Battle, where characters risk death. Then Professor McGonagall delivers a one-liner which, while meant to convey a feeling of victory and boost the morale for the upcoming war, sounds particularly silly:
Just about every sound and taunt Voldemort makes or does:
He has a "NYYYEEEAAAHHH!" which even appeared in the trailers. In the film, it shows up when he's fighting using Lucius's wand and Harry's wand burns it up, forcing him to lose his pursuit of Harry. Even better, he seems to get tangled in power lines when doing it.
When he attempts to break the shield over Hogwarts, he lets out an over-the-top "GNYAAAGGGHHH!" followed by some weird panting. What makes this worse (or better) is that it comes immediately after Ron and Hermione's kiss in the Chamber of Secrets, leading some fans to joke that he's a diehard Harry/Hermione shipper. Parodied in this video (among Voldemort's other Narmy moments).
When he announces that "Harry Potter... is deeead!", not only is the line itself Narmy, but it's followed by a really weird Un Evil Laugh. And it's completely impossible to take seriously if you're familiar with Papyrus from Undertale.
This became so memetic that Ralph Fiennes had to explain what was going through his head when he gave that performance — he was trying to avoid a regular Evil Laugh, thinking that would have been too Narmy, so he decided to have Voldemort sound taunting as opposed to just victorious. In the end, he made it sound a hundred times narmier than any Evil Laugh he could have come up with.
Immediately after the moment above, Ginny shrieks a Big "NO!", to which Voldemort replies, "Silence! Stupid girl!" It's just such a Lame Comeback for one of the most frightening, evil wizards of all time. At that point, he sounds less like an evil dictator and more like Eustace Bagge.
His awkward half-hug with Draco is so infamously Narmy that not only have both Tom Felton and Ralph Fiennes admitted it's funny, but it has also spawned such things like "On a scale of 1 to Voldemort, how awkward are your hugs?"
His last words in Part 2: "I killed Snape." He delivers the line in an unusual cross between deadpan and Punctuated! For! Emphasis!, to the point it's almost Out of Character.
The bit where Voldemort tells Nagini to eat Charity Burbage oscillates between Narmy and horrifying. Nagini lunges at the camera, fangs extended — and then you remember that it takes a long time for a snake to swallow something. It makes you imagine that after that terrifying lunge, Nagini just settled down on the floor and slowly wedged the body little by little into her mouth for the next few hours. And then you remember that there's a crowd of people being Forced to Watch — and it becomes freakishly terrifying again.
Ron's line to Harry ("Your parents are dead! You have no family!") becomes this due to Ron's face when he says the line and Harry's face when he attacks Ron for saying the line.
While "Dobby has no master!" was meant to be a Moment of Awesome, some felt it loses some of its drama when spoken in a high-pitched falsetto by a creature that looks like the lovechild of Vladimir Putin and Jar Jar Binks.
When Harry and Ron are thrown into the cellar at Malfoy Manor while Bellatrix decides to torture Hermione for information, Helena Bonham Carter yells, "Put the boys in the cellah! I want to have a little conversation with this one — girl to girl!" Bellatrix is supposed to be a Psychopathic Womanchild, but it just sounds goofy. Also, in the book, Harry and Ron utterly freak out when they can hear Hermione's screams; in the movie they just act mildly bothered, like they just heard Hermione fall over instead of their best friend being tortured by a deranged psychopath.
At the end of Part 1, when Voldemort steals Dumbledore's wand from his grave, he's so close to the corpse's face that he looks like he was about to kiss him.
When Harry's wand breaks, Ron brings him a new one, saying "Ten inches, nothing special." That's What She Said.
"How dare you stand where he stood!" Okay, it's easy to see what Harry meant by this, but something about the awkward wording is just hilarious.
Because Crabbe's actor was found guilty of selling weed and thus couldn't reprise his role for the final movie, Draco confronts Harry, Ron and Hermione in the Room of Requirement with Goyle and... some random Slytherin!note It’s Blaise Zabini, a fellow Slytherin pal and Slug Club member introduced in the Half-Blood Prince book and film. Oh no! To be fair, the writers couldn't really help this unfortunate bit of Real Life Writes the Plot, but couldn't they have added a scene where he at least acts menacing towards the trio so it's not so painfully obvious that he's just a Living Prop where Crabbe should have been?
Snape hugging Lily's dead body while baby Harry cries in the background is so over-dramatic it seems Narmy to some viewers. Given the context of the scene, it's also a massive Tear Jerker.
After being attacked by Voldemort, Neville wakes up and sees the sword with the derpiest possible expression. That's at least in character for him, but it's coupled with something hurtling overhead on fire behind him. In slow motion.
"Come on, Tom... let's finish this the way we started it." (hugs him aggressively) "Together." Worse is that the way Harry throws his arms around Voldemort's neck makes it look like he's about to plant a big kiss on him. Given that Voldemort's aforementioned hug with Draco happened just earlier, it looks as if Harry is jealous.
When they're killed, both Bellatrix and Voldemort disintegrate like they were classic video game bosses, the latter of which is given no explanation. Voldemort's case is especially weird, since he sticks his tongue out the slightest bit yet again, like a snake trying to taste the air one last time — he can't even die without Narm.
video (among Voldemort's other Narmy moments).