ex-ARMY, someone who is a former fan of BTS. Someone who went on to stan a smaller k-pop group because BTS are too mainstream and they want to feel special.
and when someone's talking trash, it'salways a leftover
Sometimes, in the BTS ARMY fandom, some fans choose to stan other artists & leave BTS. It may be because of their music taste, It's is subjective after all. But, most of the time these fans leave because BTS is too popular & that they need to stan more "underrated" groups or artists to feel more "special". Since these types of stans not only stop there but continue to badmouth BTS & ARMYs and constantly tell ARMYs to unstan & give more attention to the groups THEY stan & think is better than BTS, ARMYs got tired of them & came up with "Leftovers" to badmouth them, since they are leftover ARMYs who are salty to BTS & their fandom.
They're literally a Leftover fan lol. Got into K-pop bc of BTS first until finding other K-pop group