1.
When a man is having sex with a woman from behind, he grips her waist,lifts his feet and starts kicking her in the breasts.
2.
When the seat is removed from a bicycle leaving only the seatpost. So when you ride the bike the seatpost goes up your rectum or vagina.
3.
When a man is having sex with a woman from behind in the doggy position, there is another woman riding the woman as if on a bike holding her braids like handle bars and making a pedaling motion with her feet, and massaging herself.
Just basic conversational thingies. It starts out as a sexual thingy, so we carry on with the sexual thingies, get on to weird things to do during sex, and then Wooden Spoon sounds like something might happen.