show (your) mettle

See at: prove mettle

• eyes pop out of your head
• face as long as a wet week
• face doesn't fit
• face facts
• face is a picture
• face it
• face-saving
• face the consequences
• face the music
• face-to-face
• face to face
• face to face with
• face to face with someone
• face to face with something
• fact of life
• factory farm
• factory-farmed
• factory farming
• factory floor
• facts of life
• fade into insignificance
• fag-end of
• fag-end of something
• fag hag
• fair and square