a millstone round your neck

millstone around (one's) neck

A heavy burden. I wish I hadn't bought that house—the mortgage is a millstone around my neck.
See also: around, millstone, neck

a millstone round your neck

a very severe impediment or disadvantage.
A millstone was a large circular stone used to grind corn. The phrase alludes to a method of executing people by throwing them into deep water with a heavy stone attached to them, a fate believed to have been suffered by several early Christian martyrs.
See also: millstone, neck, round
References in periodicals archive ?
Wake up, Debbie - this man is like a millstone round your neck.
Clarissa said: "To have a millstone round your neck at such a young age seems to be totally wrong.