Can anyone please enlighten me on how this meaning of 'display (one's authority)' relates to the other meanings of the word 'to bend,' 'contract (one's muscles),' etc.? Or, does it?
RICK: (to an Observer after he man-handles one of his 'employees') Excuse me. [...] You guys keep taking my girls, you're gonna put me out of business.
NEO-OBSERVER: Get a new girl. (throws Kitty to the couch. provokes a punch in the gut from Rick)
(Rick is restrained by uniformed Loyalists and a senior Observer steps-in to flex his authority)
('Letters of Transit,' Fringe Season 4)