"do you like my mom" "yah i would double dock that bitch all night"
In anal sex, this can also be when both the anus and the Houston valves are penetrated.
Also referred to as double dipping.
If you don't know what the Houston valves are and are too dumb to figure it out, please consult Google.
You know you have a big dick if you can Double Dock.
His dick is so big, it's a double docker.