It even came with a song
It's last call
You don't have to go home
But you can't stay here
In a sense if you went to the bar looking for a date well the ones left at the end are drunk, desperate, and not likely the most appealing catch. Like shooting fish in a barrel
Those girls right there don't look so good, but three more beers I guess I would. It's either them or my right hand. I'm not as drunk as you think I am
Another way to say it is the girl is an Leftover Christmas Cake. "
Christmas Cake" is used as a metaphor term for a woman rendered unmarriageable because she is past the freshness of her youth. However when you're hungry any cake can be delicious, hunger is the spice of life