1. to pull down or remove the trousers or pants of someone, typically as a prank or form of bullying
Usage: British English; informal; often used in school contexts

Examples

• The older students debags the younger boys as a cruel initiation ritual.
• He was embarrassed when his classmates debags him during lunch.
• The school has a strict policy against debags and other forms of bullying.
• They debags him in front of everyone at the football match.
• The headmaster warned students that debags would result in serious disciplinary action.