むっつりすけべ

also: むっつりすけべい

Meanings

quiet lecher; lecher who doesn't show it

usually written using kana alone

Describes a person who is secretly lecherous or perverted but appears quiet, serious, or uninterested on the outside. Often used humorously or critically.

Kanji

助help, rescue, assist
平even, flat, peace

Related words

むっつり
むっつり is an adverb meaning 'sullenly' or 'quietly', often describing a reserved or uncommunicative demeanor. むっつり助平 combines this with 助平 (lecher) to specifically mean a person who is lecherous beneath a quiet exterior.
助すけ平べ
助平 (すけべ) is a general term for a lecher or pervert. むっつり助平 adds the nuance of being outwardly quiet or not appearing lecherous.

Built from

むっつり+スケベ

Written forms

むっつり助平
- むっつりすけべ
  Kanji spelling for すけべ; usually written in kana.
- むっつりすけべい
むっつりスケベ
kana-only spelling
Katakana spelling for スケベ, often used for emphasis or in casual writing.
むっつりすけべい
Alternate reading with すけべい; less common and somewhat old-fashioned.

Etymology

Compound of むっつり (sullenly, quietly) and 助平 (lecher). The exact origin of むっつり is uncertain, but it is a mimetic word describing a reserved or uncommunicative state.