As a Noun:
1. Trouble, fuss or difficulty. English = bother.
As a Verb or Adjective:
1. To not do something because you do not think it is important or necessary, or because you think it would involve too much effort. English = not bother, not care less.
1. Used alone as an answer to a request to do something to mean that you do not want to and that you do not think it is important. English = 'I can't be bothered!'