grey-wave

adjective

1. informal.
   denoting a company or an investment that is potentially profitable but is unlikely to fulfil expectations before the investor has grey hair

Example Sentences

The grey wave remounted the bank down which it plunged fifteen minutes before.

From Project Gutenberg

A company of men in blue were caught and cut off by a grey wave and were trying to surrender.

From Project Gutenberg

The great grey wave overlapped A Company for a considerable distance on either flank.

From Project Gutenberg