1. a person or thing that tacks or fastens with tacks
2. a staple gun or similar tool used for fastening materials
3. a young child
Usage: Australian informal

Examples

• The carpenter used a tacker to attach the fabric to the chair frame.
• She grabbed the electric tacker to secure the insulation.
• The upholsterer’s tacker made quick work of the project.
• He bought a heavy-duty tacker for the roofing job.
• The little tacker ran around the playground with endless energy.
• That tacker is only three years old but already knows the alphabet.