A euphemism for a giant shit. The kind of shit you pass while constipated. In the literal sense, a Turducken is a chicken, stuffed into a duck, stuffed into a turkey. In the shitting sense, its a big shit, stuffed into a bigger shit, stuffed into a giant shit. For men, this is the closest we'll ever get to experiencing child birth.
I haven't shat in three days, I can't wait to pass this turducken.