also: すけべい
Casual, often humorous or derogatory term for lewdness or a lewd person. Can be used as a noun (a pervert) or as a na-adjective (lewd, perverted).
He always eyes women lecherously.
That person only talks about lewd things.
He's a pervert, so be careful.
He couldn't help letting his lecherous side show.
変態 is a stronger, more clinical or serious term for a pervert or abnormal sexual behavior, while スケベ is lighter, colloquial, and often used jokingly.
エロい is an i-adjective describing something as erotic or sexy in appearance, while スケベ describes lewd behavior or a lecherous person.
スケベ describes a lecherous or horny person in casual speech, much like エロ used as a prefix for a lewd person, but スケベ is a standalone noun/adjective on its own.
助平 is the plain, everyday word for a lecher, while ど助平 adds the intensifying prefix ど- to make it stronger and more vulgar.
好色 is a formal, literary term for a lustful character, while スケベ is a casual, often humorous word for a lecher or pervert.
スケベ is slang for a lecherous person or trait, while 嫌らしい is an adjective describing an action, look, or atmosphere as lewd or unpleasant.
Most common spelling; the word is usually written in kana, and katakana is typical.
Ateji kanji form; rarely used and may not be recognized by all readers.
Rarely used kana form with an elongated ending; sounds old-fashioned or dialectal.
The origin is uncertain. It may be related to the kanji 助平 (ateji), but the word itself is likely a colloquialism. The katakana spelling スケベ is now standard.