“Touch base”

“Pull the plug”

To stop or cancel something.

“A wild goose chase”

A useless search for something that is hard or impossible to find.

“Learn the ropes”

To learn how to do a job or activity.

“No-brainer”

A very easy decision.

“Know the ropes”

To understand how something works.

“Burn the candle at both ends”

To work too hard and not rest enough.

“Easier said than done”

Something sounds simple but is difficult to do.

“Take a rain check”

To postpone an invitation or plan for another time.