Big Eater: Bom. Just... Bom. Her love of food, especially corn, has reached memetic status within 2NE1's fanbase.
CL, talking about the time when she visited Bom on the set of the MV for one of her solo singles: "It turns out Bom unnie was escaping with a muffin in her mouth. There also was a muffin in one hand and a cupcake in the other".
Dark and Troubled Past: Dara. Her previously wealthy family had to emigrate to the Philippines, where Dara had trouble adjusting. She managed to become quite a starlet, but her father gambled a lot of her money away.
Dismissing a Compliment: Their song Ugly contains an example of this. Instead of actually being about an unattractive person, it seems to be about an attractive person with severe insecurity issues who claims that someone is lying to her face when they tell her she is pretty.
Epic Fail: In this live performance of GD&TOP's "Oh Yeah" (which Bom originally featured in), Minzy, CL and Dara also perform part of the song. Minzy and CL nail it, but Dara... She runs out of breath/can't keep up and starts jumping around maniacally in an attempt to cover for herself. (See here at about 2:18 onwards.) Not exactly reassuring to those who've been... less than enthusiastic about her singing style (some feel she should leave 2NE1, as her vocal skills are far below Bom, Minzy and even CL - she allegedly "had" to be given the role of "PR Representative" so that she wouldn't be eclipsed and made redundant by the others). Love her or hate her, she's still a sweet, dorky Genki Girl.
Fangirl: Minzy, for the Black Eyed Peas and Usher. CL for 2NE1's own producer, Teddy Park.
Genki Girl: Dara, despite being in her late twenties, is as energetic as a pre-teen on a sugar high.
Genre Shift: From the R&B-influenced K-Pop of their debut EP, to the electro-influenced To Anyone.
Their second mini album has a different sound than To Anyone, too. 2NE1 (or rather, their producer Teddy Park) does not shy away from experimenting with different sounds and genres. This hasn't led to any Broken Base, surprisingly. Or rather, that's not why their base is broken.
Gratuitous English: For a K-Pop group, not so much - their producer's half American after all.
Idol Singer: Obviously. But unlike other idols, they pretty much stick to music - when they appear in TV, it's an event. May be because, when they're not on stage, they're really shy.
They don't really appear on variety shows because their CEO has said "the reason we minimize their variety appearances is because we care for our artists. [...] If we became a company that succumbed to the requests of broadcast companies and stressed the importance of building relationships with related representatives, it would have been easier for us, but we are lasting as long as we can by having a different mindset from others."
This may be backfiring on him, as netizens complain that they don't really know the girls because they rarely get to see them outside of performances. (There was "2NE1TV", though - a reality show that followed the girls around.)
This seems to be changing, though, concerning the group's recent appearance on Running Man.
Innocent Fanservice Girl: Minzy once off-handedly spoke about her fondness for going naked in the apartment she shares with Bom and, some time afterwards, she had another similar outburst.
Troubled Fetal Position: CL did this naked in the "Missing You" MV, which ended up sparking some controversy among netizens.
True Companions: They may have been put together by their label, there may be a 10-year age difference between the youngest member and the oldest one, but the girls are inseparable now. They even got matching tattoos.
In all fairness, though - the guy made it clear to CL that he was done with her and never wanted to see her again. What does she do? First she refuses to shake the new girlfriend's hand (who was trying to be polite and ease the awkwardness), then she (CL) gets drunk and goes to the guy's house (while the new girlfriend is over) and harasses the couple until he snaps. Definitely a reprehensible act (and the guy's clearly in the wrong), but CL's not exactly blameless either.