Clang is a noise that a Spaceship or Station in the GameSpace Engineers makes when it breaks. Usually because of sub grid damage done by rotors pistons or wheels. It can be word for a bug in Space Engineers. Most of the time Clang is used as a noun but it also can be used as a verb.
For example:
I hope Clang doesn't destroy my creation this time.
Oh no my Ship just clanged...
A joke name for porn involving one or more mechanical robots; mostly Transformers or Gundams. It derived from an Optimus/Megatron comic that, during the sex scene, made the sound effects "CLANG CLANG CLANG" and has been an internet meme on /m/ ever since.
/m/an #1: Can I have your CLANG CLANG CLANG folder? Especiallythe stuff with Dolores and Guncannon-tan."