one's direct boss or immediate superior; can also refer to the office or organization directly in charge

in a fit of anger; during a moment of intense irritation or a foul mood

(idiom) to provoke someone far more powerful; literally 'digging earth over the head of the God of the Year', referring to an ancient superstition that construction in the direction of the planet Jupiter would bring bad luck

The peak of one's anger; in a fit of rage

To swat a fly on a tiger's head, describing a situation that is extremely dangerous or an act of reckless audacity; looking for trouble

to install a head on top of a head; to do something unnecessary or redundant

(idiom) something that can never happen; a completely impossible event or a very strange phenomenon, literally meaning "horns growing on a dog's head"

to swat a fly on a tiger's head; an idiom meaning to take great risks or provoke a powerful person

Literally there is a knife above the character for lust [[色|色|se4]]; used as a warning that indulging in sexual desire or lascivious behavior leads to disastrous consequences.

the load or weight carried on top of the head

A two-part phrase (xiehouyu) meaning "to endure it"; the character [[忍|忍|ren3]] consists of a knife above the heart, implying that one must endure even the most painful of circumstances.