everyone is accountable for their own actions—17th century—may refer to herrings being hung when up for sale (that is to say: every piece of merchandise must sell on its own merits)
UK, 1884—‘what a surprise!’—a borrowing from French—chiefly used ironically, to imply that a situation or event is unsurprising, typical or predictable
UK, 1794—expresses one’s strong and often petulant inclination to do a particular thing—here, ‘pin’ (i.e., a small, thin, pointed piece of metal) is used of the most trivial or least significant thing
USA, 1835—to assume a pretence of courage—originally (from 1801 onwards): with explicit reference to a child putting on a brave front by whistling in the dark
a celebration for a woman who is about to get married, attended by her female friends and relations—UK, 1987—first used in relation to Stags and Hens (1978), a stage play by William Russell
UK, 1898—a small oblong piece of filleted or minced fish coated in batter or breadcrumbs, typically fried or grilled—but originally designated various dishes