Past Boy 

-Someone (typically male) from a past generation who is no longer relevant.

This Past Boy had his whole life ahead of him and still hasn't made any progress.

Past Boy by Dickelations September 7, 2020

Beers of Boyfriends Past 

A collection of beers in your refrigerator, bought specifically for your boyfriend or man you were dating, which remain in your frige long after these men are no longer in your life because they are beers you don't like and will never drink.

Asked to a guest:
Would you like something to drink, I have Beers of Boyfriends Past like Heineken, Budweiser, and a Fosters 40.

Beers of Boyfriends Past by 3mechauns November 11, 2009

ghost of ex-boyfriends past 

1. when you must supply a male member with clean clothing the day after a sleepover, and you have to dress him in multiple ex-boyfriends clothing and then hang out while he wears them. Generally, the articles of clothing may include a cleavage showing v-neck t shirt.

I totally hung out with the ghost of ex-boyfriends past today, and I cant believe I used to date a dude who wore v-necks AND one who wore MC Hammer pants. Makes so much more sense now why these dudes are my ex's.

ghost of ex-boyfriends past by hurleyrocks July 20, 2011