To remove someone's trousers or underwear, often as a form of bullying or hazing, particularly in British schools.
From prefix de- + bag (slang for trousers). This term originated in British English as school slang in the mid-20th century, describing a prank where students would forcibly remove another student's pants.
Debag is a perfect example of how schoolyard bullying gets its own vocabulary—it's a real word in major dictionaries, which shows how certain cultural practices become so common they need names.
Complete word intelligence in one call. Free tier — 50 lookups/day.