A chicken suit is a novelty costume that exaggerates the features of chickens. Chicken suits usually fit someone up to 6' 1" and 200 lbs.
A chicken suit can be used at parties and other events or as a costume for school mascots. Some chicken barbecue companies bring a chicken suit with them for members of the group for whom the barbecue is held to wear in order to advertise the event.
Once, as a joke, European ice skater Oksana Baiul entered the ice skating rink wearing a chicken suit.
For an episode of the MTV show Jackass, skateboarder Tony Hawk drove through a looping ramp in a chicken suit.