Hammer lane
The fast lane / passing lane on a highway.
Definitions
The leftmost lane on a US interstate — the one you use to overtake and to run at speed. Called the hammer lane because that's where you've got the hammer down. Truckers use it as both a literal direction ('moving to the hammer lane') and as shorthand for a hard-charging life on the road. Major trucker magazine even took the name.
Hammer lane In A Sentence
Origin & Usage
1970s/80s trucker slang, derived from 'hammer down' (full throttle). The fast lane is where drivers spend time at full speed.
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