It is sometimes suggested that egg cement is a typo of "excrement". This definition however has been rejected by many peers. Egg cement is egg cement.
by Egg Cement March 18, 2018

Egg cement is the general term for any type of cement mixed with the yolk of an egg. The practice is incredibly uncommon, so the phrase has evolved somewhat of a joke definition of having _no_ real meaning, often being spammed in chains on discord servers.
by dmbutalsodm March 18, 2018
