Dic: slash, slash and burn

1. slash: If you slash something, you make a long, deep cut in it.

2. slash and burn

• Traditional slash and burn farming methods have exhausted the soil.
• The small farmers' slash-and-burn technique destroyed thousands of acres of forest.
• The new manager's method was strictly slash and burn. He looks decisive to his boss and merciless to the people he fires.

(1) Lit. of a farming technique where vegetation is cut down and burned before crops are planted.

(2) Fig. of a crude and brash way of doing something.

... Cobuild, McGraw-Hill Dictionary of American Idioms and Phrasal Verbs