separate/sort out the men from the boys

if a difficult situation or activity separates the men from the boys, it shows which people in a group are brave and strong and which are not.

You have to survive outdoors for three days and three nights. That should separate the men from the boys.

• feel hard done-by
• feel honour-bound
• feel honour-bound to do something
• feel hot and cold
• feel hot and cold all over
• feel in bones
• feel in your bones
• feel light-headed
• feel like
• feel like a million dollars
• feel like something
• feel like yourself
• feel more like
• feel more like yourself
• feel oats
• feel out
• feel sick to stomach
• feel sick to your stomach
• feel someone out
• feel someone up
• feel something in bones
• feel something in your bones
• feel the pinch
• feel under the weather
• feel up