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Japanese · Real Japanese · B2 to C1

Slang and casual Japanese

Short answer: spoken Japanese among friends is full of slang and contractions that textbooks skip. やばい can mean both “terrible” and “amazing”, マジ means “seriously?”, and めっちゃ (from Kansai) means “really, so”. Verbs shrink too: 食べている becomes 食べてる, 食べてしまう becomes 食べちゃう. Use slang only with friends your age; with anyone else, it can sound rude or childish.

やばい: one word, opposite meanings寝坊した、やばい!nebō shita, yabai!I overslept, I’m in trouble!このケーキ、やばい!kono kēki, yabai!This cake is amazing!Tone and context decide. Older speakers mostlyuse only the first meaning.
Slang changes fast. The words here have been in steady use for years; very recent coinages date quickly.

Everyday slang

Heard daily among people under about forty.

Contractions

Not slang exactly, but casual speech compresses common patterns.

CasualMeaningFull form
tabeterueating食べている
tabechattaate it (oops / all of it)食べてしまった
ikanakyagotta go行かなければ
ii janit’s good, isn’t itいいじゃないか
sō nan daoh, is that soそうなのだ
suimasensorry, excuse meすみません
ssucasual polite です (young men)です

Online and fan words

Internet culture adds its own vocabulary.

推し
草
エモい
神

Reaction words

One-word reactions heard among friends.

Youth abbreviations

Young people shorten phrases into new words.

WordMeaningFrom
akeomeHappy New Yearあけましておめでとう
ryoOK, got it了解
gugurugoogle itGoogle + る
donmainever minddon’t mind
kēwaican’t read the room空気読めない

Check yourself

Try each one, then open the answer to check and hear it.

  1. seriously? (casual)
    Show answer
    maji de?
  2. That’s amazing! / That’s bad!
    Show answer
    yabai!Context decides.
  3. exactly, right?
    Show answer
    sore na
  4. Gotta go! (casual)
    Show answer
    ikanakya!
  5. Happy New Year (casual)
    Show answer
    akeome

A casual conversation

Two friends after a concert.

A
ライブraibuthe concertマジmajiseriouslyやばかったyabakattawas amazing
Raibu, maji yabakatta! · “The concert was seriously amazing!”やばい in its positive sense, past tense.
B
それなsore naright?!めっちゃmetchaso感動したかんどうしたkandō shitawas moved
Sore na! Metcha kandō shita. · “I know, right? I was so moved.”それな: “exactly” among friends.
A
推しおしoshimy faveがga(subject)神かみkamigod-tierすぎてsugitetoo much and
Oshi ga kami sugite… · “My fave was just too perfect…”すぎる: too much.
B
ウケるukeruhilarious
Ukeru. · “Ha, love it.”Laughing at the friend’s enthusiasm.

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