Noun
A cocktail made by mixing Drambuie and Scotch.
(slang, uncommon) A has-been, an individual whose fame or influence is rapidly declining.
Source: en.wiktionary.orgA rusty nail placed near a faithful compass, will sway it from the truth, and wreck the argosy. Walter Scott
My grandmother had this high-tech security system - a rusty nail she used to lock the door. Quincy Jones
Tres Amigos was opened in the old Rusty Nail (now Rusty Nail Stage) last year by the same team that owns the Bench, also in Stowe, and the Reservoir Restaurant & Taproom in Waterbury. Source: Internet