(I can change the question if it's too vague. 😅)
I'm trying to practice my listening comprehension by listening to anime and not fully paying attention to subtitles. For the most part I can understand them but every now and then there will be something that I suppose is so colloquial that I can't find references to the word anywhere. I like looking up the more natural ways people would say things than just book/dictionary forms. (I've been told I'm too stiff...)
One of these is from the anime 'March comes in like a Lion' season 2 episode 13 on Netflix. (For the source reference)
Rei the main character sits down about 14:50 and says under his breath something like "iya (or iye) korakusho" like when you'd sit down and go "oh boy/man" or "ah whew" or something to that effect in English, this traslates it as "ooph" in the subtitles though...
I've heard this in many other anime over the years and it's one I can never find a reference to or how it's used exactly.
Ive tried every single similar combination I could think of of kana/kanji to research and I can only think that crowd sourcing is my last option. I know this forum is very strict but I hope that my obscure/colloquial reference can be answered.