Talk:shark

old slang sense

1909, “"Theochrom" Post Cards”, in Notions and Fancy Goods, number 43, page 30:

The process of color photography is one which has caused the photo sharks many sleepless nights in an endeavor to perfect this system.

What does shark mean in this context? Do we have this sense? Simplificationalizer (talk) 03:53, 3 January 2023 (UTC)