'mail it in'

Posted by ESC on January 16, 2005

In Reply to: 'mail it in' posted by Ward on January 16, 2005

: I looked forward with anticipation to a performance by
: the group, 'Chicago, a while back when I was in Reno, Nevada. What a disapointment to hear an underwhelming and totally devoid of energy rendition of the old classics. One of the other members of the audience, who also left early, said -- 'they really mailed it in!'

Similar to "phoned it in." I wonder which came first.