In Australia, a 'drop kick' refers to someone who isn't very smart and hasn't made it very far in life. A drop kick usually doesn't go to school anymore, either having dropped out or done very poorly in Year 12, and is usually either unemployed or working a crappy low paid job full time (such as at McDonalds, KFC, supermarket etc), with no aspirations to do anything better with their lives. Many smoke and/or do drugs. Many drop kicks are eshays or bogans.

Drop kicks can be found hanging around train stations or bus interchanges, shopping centres and of course in low paid, unskilled jobs like fast food or supermarkets.

I couldn’t care less (but one must keep up appearances, right?)

Dimwitted person, slow on the uptake.

1. To run at person, door, or inanimate object and jumping either of the ground or bench,table,chair.. etc in the air extending both legs so the body is parallel or horizontal to the ground and hitting the designated target usually breaking or knocking over the target with the kicker usually falling to the ground. Hence a drop kick.

a simple, common and effective wrestling move.

Australian slang.
seewanker
reasonably polite and socially acceptable.

An stupid moron who is as good as being used as a football.