bestie

besties are the people that you spend the most time with, and you can be yourself around them. if they think anything bad about you or say mean things without a jokingful manner, they are now your bestie

“my bestie got me an amazing birthday present”

slay

the word slay is a very easy word. you can use it in many cases, especially targeted towards young teens and it means good job. young people use this instead of good job simply because it sounds better and it makes some laugh

“slayyyy bestie, you look so good in that shirt”

w

w is typically the abbreviation for win. you can use it in many cases, like talking about somebody, something, and you can even use it as an adjective

“w pool day”