Adventures in Japanese: The descent

More travels in the Japanese dictionary. (These are probably not super-common, but I just found them interesting!)

下る (kudaru)
To descend. 
But also used in 腹下し, literally 'descending stomach' - suffering from everyone's favourite ailment after a rather too ambitious curry. I suppose things start moving downwards at an alarming rate...

穴 (ana/ketsu)
A hole, space, or vacancy. 
穴があったら入りたい (ana ga attara hairitai) - After something embarrassing, you may wish to sink into a hole in the floor... 
When adding the word for child or little, 'ko', to it, you get 穴子, 'anago' - apparently a type of eel.
穴兄弟 (anakyoudai) - 'Hole brothers', two guys who have slept with the same girl!
When pronounced 'ketsu', however, it can mean the ass. So, moving further into the murky realms of adult dialogue, there is also the derivative 'ketsumanko' (穴マンコ) for 'ass pussy'. Oh my. :'D

夜 (yoru)
Night.
夜目遠目 (yometoome) - 'Night eye, far eye', seeing something in the dark or at a distance. Also apparently, the unfortunate case where a woman really looked better in those conditions.