Definition - What does Tailgate Meeting mean?
A tailgate meeting is an informal safety meeting, which is generally conducted at the job site prior to the commencement of a job or work shift. Job supervisors can draw attention to hazards, processes, equipment, tools, environment and materials to inform all workers of the risks in their surroundings.
Tailgate meetings are sometimes referred to as tailgate talks, toolbox talks or safety briefings.
Safeopedia explains Tailgate Meeting
The term tailgate meetings comes from the practice of meeting around the tailgate of a pickup truck on site. A more generic (and perhaps more popular term) for this is a toolbox meeting. While you could argue that there are slight differences covered in meetings that are on-site, the main point is that the group meets on a daily basis to keep safety top of mind.