I tote a tool box bitch it's hammer time
So excuse me as I nail em to something

from Lil Wayne – Let The Beat Build Lyrics on Rap Genius

Meaning

A toolbox refers to the copious amounts of firearms he carries,which got him in trouble! Hammer-time, a popular phrase by MC Hammer, let’s you know that Wayne is about to get to clapping those aforementioned firearms. Obviously, the phrase nail them to something rounds out the contractor-themed metaphor because nailing is what you do with a hammer. That… or diss it for losing 30 million dollars

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