Shadow - A song told in the perspective of a stalker who obsessively follows her crush around under the delusion that she& #39;s on a date with him. Everything from the instrumental in the beginning to the lyrics just scream creepy.
Rum Pum Pum Pum - The girls compare themselves to a wisdom tooth in this song. I mean the first line of the song is "hello you probably heard of me atleast once, you wisdom tooth". Also f(x) did I& #39;m different I& #39;m not like the other girls first. They walked so ITZY could run.
Pretty Girl - Told through the perspective of a wicked and ugly protagonist who is jealous of pretty girls and casts a spell on them so that they they all look the same. She even calls herself the Wicked Witch of the West.
Step - A continuation of Pretty Girl. The wicked witch has now transformed into a self-assured and mature woman who has come to love herself. But she& #39;s still different, she& #39;s not like the other girls. They wear high heels she wears sneakers.
Airplane - This song likens the feeling of entering a relationship to an airplane taking flight, having worries about the possibility that it might crash but getting on board anyway.
Toy - This time they& #39;re calling out a man who manipulates and plays with girls like they& #39;re a toy, calling him a collector. Towards the end they ask "hey, what do you wanna get this time Mr. Collector?"
No More - Originally supposed to be an Ariana Grande song called Boyfriend Material, No More is the counterpart to Toy. It talks about a fox-like friend who changes her personality for every new guy she meets. It also has the iconic "your new boyfriend& #39;s a church oppa, right?"
NU ABO - The title of the song being a wordplay meaning "new blood type" with the blood types being A B O. It basically implies that they& #39;re fresh blood in Kpop.
Sweet Witches - Here f(x) call themselves sweet witches and compare their love with a medicine they have concocted.
ME+U - The lyrics to this one are pretty self-explanatory. It& #39;s about a girl crushing, more like thirsting after her teacher.
Red Light - It criticizes the 2014 Sewol Ferry incident and consciously uses terms like "sink" and "crash". It also has an antifascism message and directly references Ray Bradbury& #39;s controversial book Fahrenheit 451.
Dracula - It& #39;s the story of the wolf waiting for Red Riding Hood disguised as her grandma except this time it& #39;s not a wolf, it& #39;s a dracula. He coaxes the little girl to trust him while warning her to beware of the dracula.
Milk - It compares the healing properties of milk on burns to ease the burn of heartache.
Boom Bang Boom - Describes a push and pull relationship by using a boxing match as a metaphor.
Spit It Out - A girl talks about a boy swallowing her heart and she& #39;s now asking him to spit it back out. Doesn& #39;t sound as bad but the lyrics are weird and without context it seems like the song is about a foodie.
Diamond - The girls compare themselves and their worth to diamonds.
When I& #39;m Alone - Has some if the creepiest f(x) lyrics. Written by Carly Rae Jepsen the lyrics talk about making love to a ghost lover but in reality the song is about masturbation.