buzzsaw

Short definition from Wiktionary

Noun

1. 1
   A circular saw.
2. 2
   Someone or something that makes a loud, harsh, grinding or rasping noise, like that of a circular saw.
3. 3
   The MG 42 general-purpose machine gun.
4. 4
   A violently destructive attack.
5. 5
   One who attacks violently and/or mindlessly.

Verb

1. 1
   To cut with a circular saw.
2. 2
   To spin rapidly like the blades of a circular saw.
3. 3
   To produce a loud, harsh noise like that of a circular saw.