Definition of Blow out

• melt, break, or become otherwise unusable; "The lightbulbs blew out"; "The fuse blew"
• put out, as of fires, flames, or lights; "Too big to be extinguished at once, the forest fires at best could be contained"; "quench the flames"; "snuff out the candles"
• erupt in an uncontrolled manner; "The oil well blew out"