What is "boobytrapped"

Usage examples of "boobytrapped".

Beyond the table were long high stacks, reeking a bit of perspiration (presumably human), the 900 series, history in its smelliest caparisons, each dark aisle boobytrapped with a metal stool or two.

Or th’ whole thing’s boobytrapped an‘ th’ mad bomber had nae th‘ patience’t’ let us find his handiwork blind an‘ then blowin’t ourselves oop.