A colloquialism is a word, phrase, or expression associated with informal language use, particularly everyday conversation, and distinguished from forms conventionally preferred in more formal contexts ^[1]. Colloquialisms are defined primarily by their register and conditions of use rather than by a particular grammatical structure or regional origin; they may occur in speech and informal writing. The term is related to, but not synonymous with, slang: slang commonly refers to a more socially marked subset of informal vocabulary, whereas colloquial usage is a broader category ^[1][2].