What is Bob Sledding?
1.
Doing doggystyle at the top of a set of steps, whereby the "catcher" has their hands on the second step down. Lay down with your chest against said catcher's back and knock their arms out from under them. Hang on and enjoy the ride.
It's a good idea to wear a helmet when you bobsled.
See
2.
Two guys, one girl, multi-head action.
She joined Tim and Ed for some Bob Sledding.