Cheese of Islam and Judaism must avoid cheeses made with rennet from animals not slaughtered in a manner adhering to halal or kosher laws. Both faiths allow cheese made with vegetable-based rennet or with rennet made from animals that were processed in a halal or kosher manner. Many less orthodox Jews also believe that rennet undergoes enough processing to change its nature entirely and do not consider it to ever violate kosher law. (See "Cheese and kashrut".) As cheese is a dairy food, under kosher rules it cannot be eaten in the same meal with any meat. Rennet derived from animal
Cheese meaning of "an ignorant, stupid person." Other figurative meanings involve the word "cheese" used as a verb. To "cheese" is recorded as meaning to "stop (what one is doing), run off," in 1812 (this was "thieves' slang"). To be "cheesed off" means to be annoyed. The expression "say cheese" in a photograph-taking context (when the photographer wishes the people to smile for the photo), which means "to smile" dates from 1930 (the word was probably chosen because the "ee" encourages people to make a smile). The verb "cheese" was used as slang for "be quiet" in the early 19th century