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 well with Steve, but I blew it by smothering him.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
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]
The American Heritage® Dictionary of Idioms by Christine Ammer. Copyright © 2003, 1997 by The Christine Ammer 1992 Trust. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
blow your ˈchanceswaste an opportunity: You had your chance and you blew it. ♢ She blew her chances by arriving late for the interview.
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