vapour lock

Noun vapour lock has 1 sense

• vapour lock(n = noun.artifact) vapor lock - a stoppage in a pipeline caused by gas bubbles (especially a stoppage that develops in hot weather in an internal-combustion engine when fuel in the gas line boils and forms bubbles that block the flow of gasoline to the carburetor);
is a kind of block, blockage, closure, occlusion, stop, stoppage