When a friend sets up a date with a mystery person that you usually (99% of the time) don't know. Avoid at all costs because these types of dates go horribly wrong most of the time!
Bob: I set up Joe on Blind Date with this girl I met the other day.
Fred: He's going to kill you, you know that right?
Bob: Why? She's got a nice personality!
Fred: Yeah, but is she hideous?
Fred: And besides those dates usually never work out.