Noun
(idiomatic) A (nutritionally) complete and satisfying meal, especially one suitable for a person performing physical labour.
Synonym: (US, elliptical) square
Three square meals a day should give you plenty of energy.
Used other than figuratively or idiomatically: see square, meal.
Source: en.wiktionary.orgAdults would say that “there are people who don’t even get one square meal a day,” and that by wasting food, I’m disrespecting the millions of people who get little to nothing. Source: Internet
Health is a slippery and problematic concept, and some people may honestly prefer a sweet lunch, but by many metrics Jamba’s smoothie bowls are more dessert than square meal. Source: Internet