This is a sexual act in which you are on the bottom while a guy who must have the name Dale is on top. The guy will have a rubber dildo that flops around, and he tickles your ass with it. Immediately you stick your dick in is ass, seconds before you release that dooby cum into his flowing ass. You then stand up, bend over, and shake your ass while Dale chants Dooby, and slaps your bottom.
(Dale) Hey Jimmy, have you ever heard of... The bottomdale dooby?!?!
(Jimmy) What the fuck is the bottomdale dooby?
(Dale) You'll see my friend, you'll see..