Teto and Egen, explained
"You're such a Teto." "He's a total Egen guy." If you spend any time in Korean group chats or on Korean social media, you've seen these words half a dozen times today. Here's what they mean, where they came from, and why an entire internet decided to sort itself into four boxes named after hormones.
Where the words come from
Teto is clipped from testosterone. Egen is clipped from estrogen. That's the whole etymology β and it's worth saying immediately that the meme has nothing to do with anybody's actual hormone levels. Nobody is taking a blood test. What the words describe is a style of energy: the impression a person leaves in a room, the way they handle a decision, the register they reach for when a friend is upset.
- Teto energy β direct, decisive, a little competitive, coolly unbothered. Says the thing rather than hinting at it, fixes the problem rather than sitting with it.
- Egen energy β attentive, warm, tuned to the emotional temperature of a room. Notices the mood shift first, and would rather understand a feeling than solve it.
The meme took off in Korea around 2024 and went properly mainstream in 2025, largely because it does something MBTI doesn't: it gives people a one-syllable way to describe a vibe. You can't easily explain why one friend feels like a golden retriever with a to-do list and another feels like a candlelit playlist, but "Teto" and "Egen" get you there in a word.
Teto men, Teto women, Egen men, Egen women
In Korean the words are almost always used with a gender attached β Teto-nam (Teto man), Teto-nyeo (Teto woman), Egen-nam (Egen man), Egen-nyeo (Egen woman) β which produces four combinations. And the interesting half of that grid is the mismatched half. The reason the meme spread the way it did is that the energy and the gender are treated as completely separate axes: a Teto woman who makes the call while everyone else is still deliberating and an Egen man who remembers what you said three weeks ago are both, in the internet's view, extremely appealing people. Far from being a stereotype machine, the meme mostly gets used to celebrate the combinations that don't line up.
The other thing worth knowing before you self-diagnose: almost nobody is a pure anything. Most people run Teto in some contexts and Egen in others β decisive at work and hopeless at conflict with people they love, or vice versa. That's why the test splits the spectrum into four rather than two.
The four types at a glance
- π¦ Full Teto β Teto energy maxed out. Decides in seconds, says it straight, and finds hinting genuinely difficult.
- πΊ Soft Teto β cool on the surface, quietly attentive underneath. Shows up with the thing you needed instead of mentioning it.
- πΈ Soft Egen β warmth as a default setting, with a spine. Reads the room, and still says the awkward thing when it needs saying.
- π Full Egen β emotional energy maxed out. Handwritten notes, curated playlists, and an unreasonable amount of thought about lighting.
Who pairs well with whom?
Folk wisdom says opposite energies attract, and the reasoning is easy to follow. Full Teto's inability to be indirect is a relief to someone who spends a lot of time guessing where they stand, and Full Egen's talent for reading between the lines translates Full Teto's clumsier feelings for everyone else in the room. Between Soft Teto and Soft Egen it's gentler: one of them is willing to make the first three approaches, and the other turns out to be worth the effort.
That said, plenty of people are much happier with someone who runs on the same wavelength β two Egens building an evening together, two Tetos who never once have to decode each other. There's no right answer here, and no science behind any of it. Read it the way you'd read a horoscope with a friend.
So which one am I?
The test doesn't ask you to rate your own assertiveness on a scale of one to ten, because nobody answers that honestly. Instead it puts you in ten ordinary situations β how you respond when a friend vents, what your wardrobe actually looks like, how you behave in the early weeks of dating someone, what you do to a group chat β and works out your Teto/Egen balance from the pattern. No sign-up, about a minute.
β» Teto and Egen are an internet meme, not a scientific classification. Strictly for fun.