I so remember this!!
My grandpa kept it always under his bed, you know, back in the days he had a house with the bathroom outside, so to wake in the middle of the night to go to the bathroom was not that that easy. So they had a chamber pot.... A Chamber pot is a container with a handle, and often a lid, used as a portable toilet, especially in the bedroom at night. People now probably think that would be gross, but back in the days we didn't care. I remember once I accidentally kicked it... Hahahahahaha, my grandma was laughing but grandpa was so mad.....
SHARE if you knew what it was... :)