Definition from Wiktionary, the free dictionary
- To throw a pass that falls short of the receiver. (May take either the thrown pass or the receiver as its direct object.)
1960 December 27, Joseph M. Sheehan, “Eagles Win, 17-13, To Take Pro Title”:
- The underthrown pass was knocked down.
2008 December 26, Joshua Robinson, “Jets Say Third Down Is Their Priority”:
- During the Jets’ recent 1-3 slide, Favre has repeatedly missed and underthrown receivers on his way to a single touchdown pass and six interceptions.