gravy train

something given in addition to what is ordinarily expected or owed the new tax law offers a real gravy train to certain categories of investors Synonyms cumshaw, dividend, donative, extra, gratuity, gravy, bonus, lagniappe, perk, perquisite, throw-in, tipRelated Words pension; bestowal, presentation; benefaction, beneficence, benevolence, bounty, charity, generosity, largesse (also largess), philanthropy; contribution, donation, gift, offering, present; grant, subsidy; boon, manna, windfall; favor, freebie (or freebee), giveaway, premium; award, prize, reward; fringe benefit, icing