1. Plural of bullneck; a person with a thick, muscular neck.
Usage: informal; often used descriptively or colloquially
2. A type of short, thick pipe fitting or connector used in plumbing or mechanical applications.
Usage: technical; plumbing/mechanical term

Examples

• The rugby players were known as bullnecks because of their powerful builds.
• The plumber installed bullnecks to connect the pipes securely.
• Several bullnecks gathered at the gym to work on their strength training.
• The mechanic selected the right bullnecks for the assembly.