my wife's mother used to rent a room to a guy who had this habit of opening the refrigerator and eating half of whatever leftover was there....and then half of the remainder. Soon there was this tiny bite left that was not big enough for a serving, but which you hated to throw away...so he got the honor of having an entire food category named for him....the weisiger

"Hon, is there any of the chocolate cake left?"
"Only about a weisiger...sorry"

a VERY useful word, and it even sounds right.