QUOTE(Marien @ Aug 24 2017, 22:13)
Not really slang, but I'm curious if the Japanese really distinguish the 'body' from the 'self' in every day speech. In hentai, way more often than not, characters will place the blame on their body rather than just admitting they want it. Like if a woman is horny, she'll say something along the lines of 'it's not me, it's my body.' In a normal every day situation, if someone is say for example, tired, will they say "I'm tired" or "My body is tired"?
It's not so much that they distinguish between body and self as it's a case where what people say is often to keep up appearances (たてまえ), while what they really want (ほんね) is something else entirely.
So, as is often the case in ero manga, the girl is saying "no" because it's expected of her, while her body is apparently asking to be banged like a screen door (which would be her true feelings, in the author's view).
In my experience, everyday Japanese responses skew one place from what the person says to what they actually mean.
You ask a Japanese person if they'd like to get together again.
They say "yes" ==> they mean "maybe"
They say "maybe" ==> they mean "no"
They say "no" ==> they mean "seriously, fuck off"