echar humo

(v.) = blow + smoke, fume, smolder
Ex: He adjusted himself comfortably in the chair, overlapped his legs, and blew a smoke ring that dissolved two feet above her head. Ex: Who has not had occasion to fume at the need to consult a large number of Official journals in order to reconstitute the current text of a particular regulation from all its amendments and corrigenda!. Ex: Among other buildings afire or still smoldering in eastern Baghdad today were the city hall and the National Library which was so thoroughly burned that heat still radiated 50 paces from its front doors.