What is the Origin of the phrase its your turn in the barrel?
It is the punch line of a joke usually set in a logging camp or some other man camp with a barrel featuring a 2 inch diameter hole about 32 inches from the ground and a queue of men awaiting relief of backed up semen. A new man asks when he might join the queue and is told "any day but Thursday." He asks why and is told "Thursday is your turn in the barrel."
In the days of the tall ships the men being at sea for long peirods needed release. With no woman allowed on the ship the practice of having an anoumus member of the crew huddle down in one of the large wooden barrel and through a removed stay or appropreate made hole in the side of the barrel service the other needing members of the crew. Everyone got their turn. Hence the phrase "turn in…
According to the Oxford English Dictionary, the phrase "to turn the tables" means to switch the players' positions in a game of backgammon, which is where the expression originated from. Each table belongs to a specific player and turning the board would turn the tables, altering the position of the players.
My grandfather told me it originated back in the 50's and 60's when they had an ordinance in some cities where blacks could not laugh out loud in public just because of the way they act crazy when they laugh. If someone told a joke, they would have to run to a designated "laughing barrel" and duck their heads in and they could laugh as long as they wanted.