OwU

Simply the same as OwO or UwU
It is just OwO winking, now son
when a mother and a father gets together

Jesse: "Thank's for that meal!"
Austin: "*winks back* OwU"

Yain't

Yain't is a mix of words (you all are not) whom when put together, forms yain't.

Chris: "Come play volleyball with us!"
Austin: "No, yain't good at that"

PTSD

Post-traumatic stress disorder (PTSD) is a mental health condition that's triggered by a terrifying event — either experiencing it or witnessing it. Symptoms may include flashbacks, nightmares and severe anxiety, as well as uncontrollable thoughts about the event.

John: To musch LAsaga im having a PTSD
YOu: Lasaga hyPE