he; boyfriend

a box: a container with a lid / (archaic) a chamber pot for feces; (by extension) feces

box

(slang) to make (the effort to make) oneself look cool

Alternative spelling of 開け胡麻 (“open sesame”)

open sesame!

(idiomatic) to have luck turn one's way

container, case, receptacle

strengthens the prefixed adjective or adjectival noun

one who does the previous word's action: -ist, -er / (board games) counter for moves in shogi, go, etc.