noun: a universal noun used at times when no other words seem to suffice or come to mind; often with the intent of being derogatory.
Look at this guy, what a mamel he is.
Person A: Hey man, pass me that thing. Person B: What thing?
Person A: The...the..thing...the mamel, pass me the mamel...you mamel!
I tripped over that fucking mamel.
My mamel hurts.