I work and have worked with a lot of engineers and I dare say that none of them would recognise the contraction. I think it's language creep from people placing their own interpretation on common phrases like "small cog in big machine" and "just another cog in..."A cog is also short for a cogwheel.
I accept that language is changing but the point of this thread is surely to attempt to preserve some standards consarn it!
Posted on the move; please excuse any brevity.