blow it

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blow it

slang To ruin, mishandle, or fail to capitalize on an opportunity. Bob was being considered for the promotion, but he blew it when he came in late to work each day this week. Things were going wellwith Steve, but I blew it by smothering him.
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blow it

(slang)
to lose an opportunity Most people think Congress blew it on the environment by not acting quickly on the president's proposals.
Related vocabulary: throw away something
See also: blow

blow it

  (informal)
to spoil your chance of achieving something you want because of something you do or say She was hoping for promotion but she blew it when she got pregnant. They want to publish his autobiography so let's hope he doesn't blow it by arguing with the publishers.
See also: blow

blow it

1. Spoil, botch, or bungle something, as in That was a great opportunity, but now I've blown it. [Slang; c. 1940]
2. blow one's lines. Make a mistake in speaking one's part in a theatrical production, as in Ben blew his lines, but Dean came to the rescue. [Mid-1900s]
See also: blow