deal (something) a death blow

to take an action that causes something to end or fail.

New attacks dealt a death blow to the peace talks.

• burst into something
• burst into tears
• burst onto the scene
• burst out
• burst out doing something
• burst out of
• burst out of somewhere
• burst someone's bubble
• burst the bubble
• bury head in the sand
• bury the hatchet
• bury your head in the sand
• bush league
• bush telegraph
• business as usual
• business end
• business end of
• business end of something
• business is business
• busman's holiday
• bust a blood vessel
• bust a gut
• bust a gut laughing
• bust ass
• bust balls