It indicates that the problem could be much larger and much more serious than what meets the eye.
If you’re going back to the drawing board, it implies failure or at least some degree of imperfection.
Earn one’s keep means one must work to make a living instead of being a parasite.
It means that you’ve come close, but no victory, hence no medal and no victory lap.
It refers to crimes committed by office holders instead of the usual violent types such as the street burglar or the bank robber.
When a politician says in an election campaign “I’m not selling out”, he is promising his voters that he’s not going to betray them.
Ronaldo being in pole position is a metaphor implying that currently he is in front of the competition.
Riding the pine is a sports term for someone sitting on the bench instead of playing.
To say that she wears her thoughts and emotions on her sleeve is to say she shows her thoughts and emotions easily.