flex
This term evokes a physical sensation of tension and elasticity. In a physiological sense, it describes the active contraction of muscle fibers to create a hard, defined shape, often associated with strength and athletic display. In a social or psychological context, the word has evolved into a slang term for conspicuous consumption or the overt demonstration of status. This usage shifts the focus from physical elasticity to the metaphorical stretching of one's influence or wealth to impress others.
Meanings
To bend a body part, such as a muscle, to make it tight or strong.
"He flexed his biceps to show off his strength."
To contract a muscle to make it firm or visible.
"The athlete flexed before the judges."
To bend something made of a flexible material without breaking it.
"The new antenna is designed to flex in high winds."