pissappear
When you are out with someone and they go to the bathroom and skip out on you.
Dude, where is Steve? Last time I saw him he was headed to the bathroom. I bet he pissappeared, he wasn't feelin' this joint.
Pissappear
When you are at the bar with a group of friends and you say you are going to the bathroom and you actually go home without saying good-bye.
Where did Kelsey go? She better not have pissappeared again!
Pissappear
When someone uses a bogus excuse to remove themselves from a social gathering
Hey George, where did Penny go? I don’t know Bear, I guess she just pissappeared