Be/come a poor second, third, etc. verb phrase
To finish a competition, especially a race, a long way behind the winner
Tim was sad because he came a poor second in the school contest.
Sadly, Mac was a poor third in the race despite all the hard work he put into his training.
The rival was so fast that he made our player came a poor second.
To be considered lower in value or quality in comparison with the other thing
To me, health is everything and money is a poor second.
Having extremely poor quality, value or position
The verb "be/come" should be conjugated according to its tense.
Daughter: So I really want all my friends to have a great time. I was thinking it would be a good idea to have some candy out on the tables for people to snack on.
Mother: Well, if you want them to really enjoy themselves, candy is dandy but liquor is quicker.