spike guns

spike somebody's guns

to spoil someone's plans

Usage notes: In the past, soldiers put spikes (= thin, pointed pieces of metal) into their enemies' guns in order to stop them working.

The African runner spiked her guns, overtaking her in the final minute.

Name	Pronounced	Usage
Jyothi	-	Indian, Telugu, Malayalam
Noy	-	Hebrew
RafaŁ	RAH-fow	Polish
Mnason	-	Biblical, Biblical Latin, Biblical Greek, Ancient Greek
AlbÍNa	-	Czech, Slovak
DobrosŁAwa	daw-braw-SWAH-vah	Polish