rope of sand

build on sand

To put something in an unstable position by failing to give it a secure foundation.

bury one's head in the sand

To deliberately ignore the reality of a situation; to pretend a problem does not exist.

give someone enough rope

To allow one to function unhindered, or without further overbearing oversight.

line in the sand

A defining moment; a cutoff point.

money for old rope

Money earned with little effort.

pound sand

To engage in a simple, useless activity that anyone would reasonably know how to perform.

put one's head in the sand

Synonym of bury one's head in the sand.

skip rope

To jump over a rope, both of whose ends are held by the jumper or by two others, while the rope is moved under the jumper's feet in a continual rhythm; to play the game of jump rope or exercise by jumping rope.