This study is concerned with investigating the deliberative goals behind the use of popular slang expressions by the preachers of the Husseini pulpit in the context of delivering lectures addressed to the Iraqi people and the Islamic public in general. These preachers are considered social reformers, in addition to being descended from the religious establishment, as they put forward religious ideas, most of which derive from the Husseini issue, and use them as a basis for calling for reform. Hence, the popular colloquial language is employed by these Husseini preachers in their lectures and sermons, which are characterized - as the case may be - by a very formal context. However, after presenting a theoretical aspect of the deliberative aspect of the popular vernacular language, and after examining the deliberative functions in a number of lectures and by different preachers. The most commonly used and frequently used colloquial expressions were selected and then placed in a questionnaire according to the approved evidence chosen for this st