Pretinazo: ( m. ) 1. in the colloquial language, feeling that is experienced to a fact that causes discomfort or annoyance, especially in the economic field: " With the increase in the value of gasoline, when I went to tank truck, I felt the pretinazo ". 2. sharp blow given with something, especially with the waistband of the pants. Synonyms: Mamonazo, perrencazo.