Like when you try to save some
money on a tune up and, in the process of doing it yourself,
break your distributor body and, in the process of putting in a new distributor got the timing all out of place so the
car won't run and breaks down twenty miles from home in the middle of the night. In that instance you would tell the towtruck driver "Well, I guess I fubar'
d that damn thing (At least that's what I told my tow truck driver when I did it).