blind roller

American  

noun

Oceanography.

1. a long ocean swell that rises almost to breaking as it passes over shoals.

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Etymology

Origin of blind roller

First recorded in 1885–90

Example Sentences

Or rather, it isn't, until you fly over the last blind roller, the Deer Jump, and almost free fall into the finish arena in front of the huge Sochi 2014 stands.

From BBC

For Closing Windows.—A piece of bamboo, an old blind roller, or any strong smoothly rounded stick about three feet long, with a small flat piece of wood about the same thickness, twelve inches long and covered with flannel, nailed across the ends, makes an admirable and useful article for closing top windows without either going outside or standing on a stool or a chair to reach, or straining one's self with the weight to be raised upward.

From Project Gutenberg