We set a 'booby trap' by balancing a bucket of water on top of the door so that it would fall on him when he came in.
Someone had rigged a 'booby trap' that blew up the car when the engine was started.
You came in last—you win/get the 'booby prize'.
(..) What are you doing? I'm checking for laser beam alarm triggers. It's a restaurant! You never know what kind of booby traps this guy could have set. Huh? Come on. There are no booby traps. Ha! Booby! Oh. There's a chicken. (..)2013 Despicable Me 2