electron volt

電子ボルト: electron volt

iron

iron, the metal and the metallic chemical element / (more generally) steel / short for 鉄砲 (teppō, literally “cannon”, but in this case, refers to the poisonous fugu blowfish or dishes made from it)

(idiomatic) to cut loose, to go wild

to use one's head

Alternative form of 鉄梃

use one thing for many purposes / work someone hard

(colloquial) current boyfriend

everything