lagniappe

A small gift presented by a storeowner to a customer with the customer’s purchase.

An extra or unexpected gift or benefit.

In Louisiana, a trifling present given to customers by tradesmen; a gratuity.

A tip or gratuity.

Anything obtained gratuitously or unexpectedly.

An extra or unexpected gift or benefit, such as that given to a customer when they purchase something else.

a small gift (especially one given by a merchant to a customer who makes a purchase)