The effect created when farting inside hip waders, which are commonly used during duck hunting. A takeoff of the phrase dutch oven
(to fart under covers and then pull the covers over your or someone elses head), the duck oven is contained inside waterproof waders, slowly releasing itself to almost no one but the wearer. However, when the waders are removed, the effect is shared and rather potent if there have been multiple duck ovens created.
After a hunter's breakfast of coffee and beef jerky, Cecil watched for mallards and silently enjoyed his duck oven.