Cucoloris

[1] Grant Barett, a co-host of the radio show "A Way with Words", suggested that the phrase is an eponym of George Cukor.

Cucolorises differ from standard gobos in that they are used farther away from the lighting instrument, and therefore do not need to be as heat resistant.

Folsey told a grip to hold a stepladder in front of a key light to create a shadow on the actor’s shirt.

The grip eventually tired of holding the ladder, so he cut a grill with the same pattern in a sheet of light wood.

Rosson used Folsey’s wooden grill to create some shadows, which made the scene more dramatic.