colloquial

adj. conversational, not used in formal speaking or writing; informal

A colloquialism is an expression not used in formal speech, writing or paralinguism. Colloquialisms can include words (such as "y'all", "gonna", "deadly" or "grouty"), phrases (such as "ain't nothin'" and ""), or sometimes even an entire aphorism (""). Dictionaries often display colloquial words and phrases with the abbreviation colloq. Colloquialisms are often used primarily within a limited geographical area.
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Adjective
1. characteristic of informal spoken language or conversation; "wrote her letters in a colloquial style"; "the broken syntax and casual enunciation of conversational English"
(synonym) conversational
(similar) informal

(a.)
Pertaining to, or used in, conversation, esp. common and familiar conversation; conversational; hence, unstudied; informal; as, colloquial intercourse; colloquial phrases; a colloquial style.
  

adj.
بات چيت يا بول چال کا , روزمرہ کا لفظ