Adam Peaty has become the first British swimmer to take three gold medals at a single World Championships.
He won both the 50m and 100m breaststroke, and the mixed relay at the World Swimming Championships in Russia last week.
Peaty hopes his excellent results will give him a boost ahead of the Olympics in Brazil next year.
He wants to win gold there too.
So he's world class in the pool, but did he make a splash when he tried to guess the punch lines to Ricky's swimming jokes?
We tested the water to find out...