Coordinate term: football

Amos is a lithe, keen, snell man.

“There ain’t no drain of nothing short handy, is there?” said the Chicken, generally. “This here sluicing night is hard lines to a man as lives on his condition.” Captain Cuttle proffered a glass of rum […]

If the first operand (which comes before the question mark--doIt, in this example) is truthy, the expression evaluates to the second operand (between the question mark and colon), and if it's falsy, it evaluates to the third operand (after the colon).