saw off

verb2

1. •
   To cut off with a saw.

   • A paraplegic St John's Wood man bled to death after trying to saw off his own legs. — 2011
2. •
   (slang) For the umpire to declare a batter out.

   • […] umpire's finger move slowly skywards. The skipper had been mercilessly sawn off. — 2010