Meanings

hexagon socket head

hex socket head cap bolt

nesting hole

Japanese badger (Meles meles anakuma)

anaguma castle (defensive opening)

small-minded

dark hole

mortice

(staring) piercingly

nostril

lava cave

men who have had sex with the same woman

volcanic cave traditionally said to be inhabited

cross-head screw

small gate in a mud or stone wall

excavation

snake hibernation

snubnosed eel (Simenchelys parasitica)

gang

one hole