gravy
n[U]
1 juice that comes from meat while it is cooking; sauce made from this 肉汁; 調味肉汁.
2 (sl 俚 esp US) unearned or unexpected money (or profit) 不勞而獲的或意外得到的錢財(或利益); 飛來福.
He loved to be told that one of his imaginary products was temporarily out of stock and he would faithfully promise to call again at some future date, but of course he never did.