blow out verb 10forms 4 verb10 •To extinguish something, especially a flame, especially by means of a strong current of air or another gas.He blows out the match.The wind blew the candle out. •To destroy or degrade (something) quickly, especially inadvertently and prematurely; for example, to deflate (a tire) by puncturing it, to burn out a light bulb by overcurrent, or to injure a bodily joint.I blew out a tire on some hard cornering.I blew out an LED when I cranked up the power. •To be destroyed or degraded quickly, especially inadvertently and prematurely.The tire blew out on some hard cornering.An LED blew out when I cranked up the power. •In a sporting contest, to dominate and defeat an opposing team, especially by a large scoring margin.The No. 1-rated football team proceeded to blow out its undermanned opponent. •(slang) To spend a lot of money; to splurge.There's also an abundance of sky bars for an expensive drink with an awesome view. If you're looking to blow out in style then try one of them. — 2014 •To force open or out by the expansive force of a gas or vapour.The startled man blowing out his drink is one of the surest laugh-getters of the modern drama. — 1934 •To be driven out by the expansive force of a gas or vapour.A steam cock or valve sometimes blows out. •To exhaust; to physically tire. •(slang) To sing out, sing out loud. •(vulgar, no longer used) To talk violently or abusively. formsblew out · blown out · blowing out · blows out