An unanticipated coastal wave that is much greater in force and height than the waves preceding it.
More example sentences
- In early 2004, a person at McClures Beach was killed when she was knocked off a rock by a sneaker wave.
- Walking along Harris Beach, Oregon I turned to see this 'sneaker wave' roll in.
- A sneaker wave crashes in unexpectedly, inundating an unsuspecting eagle with a sudden foam bath.