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smokeless powder
smokeless tobacco
smokeless zone
smoker
smoker’s cough
smokestack
smokestack industry
Smokey
smoking gun
smoking jacket
smoking room
smoko
smoky
Smoky Hill
smoky quartz
smolder
Smolensk
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smoking gun

smok·ing gun [ smking gún ] (plural smok·ing guns)


noun 
Definition:
 
conclusive proof: conclusive evidence or proof, especially of wrongdoing

[< the idea of finding a recently fired gun in a suspect's hand]
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