Blow your chance - Idioms by The Free Dictionary
blow (one's) chance (redirected from blow your chance)
blow (one's) chance
To ruin, mishandle, or fail to capitalize on an opportunity. I'm sorry, Bob, you blew your chance at a promotion when you decided to come in late to work each day this week. I blew my chances with Steve last night when I ordered the veal. How was I supposed to know he's a vegetarian?
References in periodicals archive
But giving her an unexpected bang trim next time you're working the Bunsen burner would a) get you suspended and b) completely blow your chances
of getting The Guy.
You agree, afraid you'll blow your chances
if you decline.