Definitions
1.nounA portable percussive power tool that combines a hammer and chisel used to drill or break hard matter, for instance rock or concrete.
2.verbTo use a jackhammer.
3.verbTo break (something) using a jackhammer.
4.verbTo form (something) using a jackhammer.
5.verbTo move like a jackhammer.
6.verbTo move (something) like a jackhammer.
7.verbTo strike (something) repeatedly with force, to pound.