the word is a combination of dissappointing and depressing. It is used to describe an event that falls under both words.
you couldn't get the loan on your car.
your girlfriend dumped you for someone uglier than you.
you got the green psp instead of the red one.
thats so fucking dissappressing.
Prices shown in USD.
邮件由 email@example.com 发出。我们决不会发送垃圾邮件。