Translation guide
Describes someone with an obsessive or uncontrollable interest in sex. Japanese expressions range from clinical terms to slang, and the best choice depends on context and intensity.
To call someone a sex maniac in a casual, often derogatory way.
Literally 'erotic old man', used for a lecherous middle-aged man. Very common in casual speech.
あのエロオヤジ、また若い子に声かけてるよ。
That sex maniac is hitting on young girls again.
A general term for a lecherous person. Can be used playfully or seriously.
彼は本当にスケベだね。
He's such a sex maniac.
Kanji form of スケベ, slightly more literary but same meaning.
助平な目つきで見るな。
Don't look at me with those sex maniac eyes.
Slang for 'erotic demon', implying an extreme sex maniac. Used humorously or in manga/anime contexts.
彼はエロ魔人と呼ばれている。
He's called a sex maniac.
To describe someone with a pathological compulsion for sex, such as hypersexuality or sex addiction.
Clinical term for sex addiction. Used in medical or therapeutic contexts.
彼は性依存症の治療を受けている。
He is receiving treatment for sex addiction.
Older clinical term for nymphomania or satyriasis. Now somewhat dated but still understood.
Medical term for hypersexuality, literally 'sexual desire acceleration'.
性欲亢進は治療可能な場合がある。
Hypersexuality can sometimes be treated.
To insult someone by calling them a pervert or sex-obsessed person.
Means 'pervert'. Stronger than スケベ and often used as an insult.
この変態！
You sex maniac!
Specifically a molester or groper, often on trains. Implies criminal behavior.
Slang for a horny kid or young pervert. Used for younger males.
あのエロガキがまた女子のスカートをめくった。
That little sex maniac flipped up a girl's skirt again.
To tease someone about being overly interested in sex, without serious insult.
Literally 'erotic person', a lighthearted way to call someone a sex maniac.
彼はエロい人だけど、憎めないんだよね。
He's a sex maniac, but you can't hate him.
A 'closet pervert', someone who seems quiet but is secretly lecherous. Often used teasingly.
彼はむっつりスケベだって噂だよ。
Rumor has it he's a secret sex maniac.
The direct translation 'セックスマニアック' is not natural Japanese. Use the expressions above depending on context.
スケベ is a general term for lecherousness and can be playful. 変態 implies deviance and is more insulting. Choose based on the relationship and intent.
Symptoms of sex mania are appearing.
Molestation is a crime.