1. The action of flicking something off a part of your body, such as an insect or leaf, or any thing or any action directly or indirectly associated with this, especially a pest.
As a Noun:
1. A small animal that has six legs and usually wings. Examples include, ants, flies, butterflies and beetles. English = insect, bug.
2. An insect, bug or small animal that bites or otherwise irritates you. English = pest.
As a Verb or Adjective:
1. To get rid of a pest. Idiomatic English = to give something the flick.