(US, military, euphemistic) A supposed comrade whose actions harm his friends, often but not always, for his own benefit.

(medicine, historical) A pill of prepared mercury, used as an aperient, etc.

duckanoo

Synonym of blue mass; a miraculous mercury treatment / Ellipsis of little blue pill.; a therapeutic enabling sexual function. / Antonym of red pill; rejecting the red pill philosophy.

Antonym of red pill; rejecting the red pill philosophy

A blue color, resembling the color of Dodger Stadium.

Of the blue color of Dodger Stadium.

Alternative form of Blue Vinney

A traditional hard, crumbly blue cheese from Dorset, England, made from skimmed cows' milk.

N,N,N′,N′-tetramethyl-p-phenylenediamine, an easily oxidized phenylenediamine whose radical cation is a characteristic blue-violet colour.