Egg-crating can also be used to support metal molds where the thickness of the metal has been reduced to improve weight savings and costs.

For so long I stayed natural because it was a sense of pride to me that as a natural I was still competing and beating guys who were juicing up.

[1923, J[oseph] Manchon, Le slang : lexique de l'anglais familier et vulgaire :[…], page 296:

And in that indulgent epoch it was no uncommon thing to find rhymical twins made of chime and shine, while roof and cough and enough strayed hand in hand through many a flowery page of the old pastorals, and no critic was ever intrepid enough to dare protest against the strange mésalliance.