Meh!
Meh is a word you use when you arent ok, but you arent too bad either and you dont really wanna talk about it cus you aint in the mood lol!
person A: "hey dude! u ok?"
person B: (feelin a bit pi**ed off but not at his/her worst and aint in the mood for going into detail!) "Meh!"
person A: "Oh its like that is it?"
*person-B doesnt even have to explain him/herself, person-A has established hehe!