Overblown meaning : To cover with blossoms or flowers. To blow over; pass over; pass away. To blow hard or with much violence. To blow over or across. To blow away; dissipate by or as by wind. To exaggerate the significance of something. To blow a wind instrument (typically a whistle, recorder or flute) hard to produce a higher pitch than usual. Of a wind instrument, to move from its lower to its higher register. Of exaggerated importance; too heavily emphasized, hyped, etc.