I'm not sure we have an official motto, but one chant we always use is; "We are WARLOCKS!"
There are however a lot more unofficial phrases and...words that we use during the build season that may or may not be work appropriate
They are used quite often in the CAD room whenever we find out from the Build team about how they made a complete overhaul from their original design about 3 days ago are only just now informing us.