jackhammers

/JH AE1 K HH AE0 M ER0 Z/
noun
  1. 1

    A portable percussive power tool that combines a hammer and chisel used to drill or break hard matter, for instance rock or concrete.

verb
  1. 1

    To use a jackhammer.

  2. 2

    To break (something) using a jackhammer.

  3. 3

    To form (something) using a jackhammer.

  4. 4

    To move like a jackhammer.

  5. 5

    To move (something) like a jackhammer.

  6. 6

    To strike (something) repeatedly with force, to pound.

Source: https://en.wiktionary.org/wiki/jackhammer, https://en.wiktionary.org/wiki/jackhammers