We all have a friend that says stuff, and means the total opposite. It can be bad or not that much of a big deal.

Idk: It's a 100% no.
Maybe: I'll think about it, but probably not.
I guess I'll be there: He won't be there
Omw: He is just now getting ready to leave but still has to poop, take a shower, and watch every movie on netflix.
I don't have money: a go to excuse to not do something with the boys
I'm going to stop by my gf's for a minute: He isn't coming back for the weekend. Just face it.
I have notifications off: He slid your message open and has no interest in what you sent him.
"Reick Chat": a reick chat is when he reads your group chat messages, but hasn't read your dm's you sent hours ago.
You want to do something?: He makes plans but forces you to set up the date, time, and place but ultimately forgets he made plans and dips.
I'm on the game rn!: He is in a party, but afk currently and won't come back for atleast 3 hours.
I'm about to eat dinner: He is muting everyone and watching YouTube to eat his ramen noodles.