UDder Disappointment occurs when someone has tried time and again to get a phrase into Urban Dictionary only to meet with rejection. For example this can occur if they try to submit legitimate phrases such as Rape of Clowns which genuinly is the collective noun for a group of no fewer than seven clowns outside of the tradditional circus setting. Like charity collecting.

when you've done something so cringe you can't stop replaying it in your head and it stops you from getting on with your every day life