blow up in face
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blow up in someone's face
1. Lit. to blow up or explode suddenly. The bomb blew up in the terrorist's face. The firecracker blew up in his face and injured him.
2. Fig. [for something] to get ruined while someone is working on it. All my plans blew up in my face. It is terrible for your life to get ruined and blow up in your face.
blow up in your facealso explode in your face
to unexpectedly fail The military does not rush into a situation that could blow up in their faces. Carey's efforts to explain the need for staff reductions exploded in his face.Related vocabulary: have egg on your face
blow up/explode in somebody's face
if a plan or situation blows up in your face, it has a bad effect on you instead of the result you expected The government's attempts at reform have blown up in its face, with demonstrations taking place all over the country.