These terms exist on a trend / temporary / fashionable. People form groups and their vocabulary defines them as “the other”. When a word becomes used in the mainstream, it will be dropped and no longer be “cool”.
we stan = we overly love (comes from stalker + fan) : I stan Shermie
bae = babe = attractive person
cursed image = a picture that brings bad luck (but this is a joke)
rn = right now
lit = very exciting
Mainstream / old, but still in use
peeps = people
mad hype = very exciting
lewd = sexual
my boo = someone I love
free = low level player, no skill : he’s so free lol
pop off = when a player jumps up and boasts/ brags about their victory after a match