1. a hinged or removable board at the back of a truck or wagon that can be lowered for loading and unloading

Examples

• The workers lowered the tailboard to unload the heavy boxes.
• He sat on the tailboard of the pickup truck during lunch break.
• The tailboard was damaged when it hit the loading dock.
• She secured the cargo before raising the tailboard.
• The old farm truck had a wooden tailboard that creaked when opened.
• They used the tailboard as a makeshift table for their picnic.