Learn English – How did “on the house” become a synonym of “free”

colloquialismsidiomsmeaning

question as in the subject. Noticed such an expression at least in two occasions…

Best Answer

On the house is a synonym of free because of its usage in bars across the United States and other English speaking countries to describe free drinks. If the bartender said that a drink was on the house, He meant that the the drink was paid for (on the) by the bar (house). In essence when the bartender said on the house he meant he was giving you a free drink. The term gained popularity through frequent use in movies and books during the 20th century.