A bottomless mimosa is a cocktail that is provided, often by a restaurant, at a flat rate, with unlimited refills. It is typically made with champagne and orange juice, and sometimes includes additional ingredients like orange-flavored liqueur or fruit puree. The term "bottomless" refers to the fact that the drink is continuously refilled, giving the impression that the glass has no bottom. While bottomless mimosas are often associated with brunch, they can be served at any time of day or for any occasion. Some restaurants and bars offer bottomless mimosa deals, while others may charge per glass or pitcher. It is important to note that bottomless mimosas are not always a good deal, as the flat rate may be higher than the cost of ordering individual glasses. Additionally, it is important to drink responsibly and be aware of the alcohol content of the drink, as well as any time limits or restrictions that may be in place.