The time that someone takes for the appearance to get ready

in reference to a hand-job, (aka handie)
handy-man does mantenance.

when a maintenance associate is doing their actual duty.

An event which is not actually maintenance, but a form of destruction or demolition.

When you're participating in nofap and you begin to over sexualise things, like apple pies and peanut butter sandwhiches, it's time for a maintenance wank. This keeps your inner sexual deviant at bay, while also reducing the amount of awkward boners you might experience.

When you got to clear the weeds, release some finely aged fluids, wax and lube up the shaft.

The fine art of bludgeoning an electronic device in order to encourage it to work properly. Vigorous usage of this technique often renders said device permanently nonfunctional.