A friend who is only a friend when circumstances are pleasant or profitable. At the first sign of trouble, these capricious, disloyal friends will drop their relationship with you.
I had thought Ted would stand by me when I was accused of theft, but it turned out he was only a fair-weather friend.
作者 Stephanie M. 2003年10月25日
A friend who doesn't help in times of difficulty. Likely nautical in nature, referring to the fact that when weather is good nearly anyone can help on a ship.
When Tom refused to help me move after my divorce I realized that he was a fair-weather friend.
作者 Jason Warren 2003年10月26日