rapidswimmer
nounUK /ˈræpɪdˌswɪmə/
US /ˈræpɪdˌswɪmər/
A rapidswimmer is someone who swims very fast.
The rapidswimmer won the race by a whole minute.
OTHER MEANINGS
2. A fish that moves quickly through the water.
The rapidswimmer darted away from the net.
3. A toy or robot that swims fast in a pool.
My rapidswimmer toy zoomed across the bathtub.
4. A nickname for a person who is always in a hurry at the pool.
Everyone calls him the rapidswimmer because he never slows down.