1. the lower part of a shirt that extends below the waist
Usage: usually plural
2. distant relatives or connections through family relationships
Usage: informal; usually plural

Examples

• He tucked his shirttails into his pants before the meeting.
• Her shirttails hung loosely over her jeans.
• The wind caught his shirttails as he walked.
• She always keeps her shirttails untucked for a casual look.
• We invited all our shirttails to the family reunion.
• Even distant shirttails showed up for the wedding.
• He’s related to us through shirttails on his mother’s side.