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]

Example Sentences

“Did they just blow it off and say, ‘We always have flood watches’?”

From Los Angeles Times

Last week he even said in the same breath that an Israeli attack on Iran would help a deal or it would "blow it".

From BBC

At the start of last week, he urged Israel to stop threatening Iran militarily because an attack could "blow it" when it came to the nuclear negotiations with Iran he's always said he much prefers.

From BBC

“I don’t want them going in because, I mean, that would blow it,” he said.

From Los Angeles Times

"It's ridiculous when it's the best job on the planet pretty much, and to blow it through being childish is really shooting yourself in the foot. But good gigs remind you there is still something worth fighting for."

From BBC

Related Words

• err 
• flub 
• screw up