If someone is chatting rubbish.

If something is bad/dead

Intelligence agency term for "psychological operation". A government or corporate-sponsored operation, usually taking the form of a "terrorist attack" or "crazed gunman on a spree", with the intent of panicking the public into demanding more police and laws inhibiting freedom. Psyops are usually carried out by drugging a civilian or group of civilians with aggression-promoting drugs, psyching them up, arming them, and sending them out to commit mayhem. Government-sponsored terrorism. See also blackshirts, conspiracy

This is an adjective. It is a synonym - at least in South Yorkshire - for large, big, massive, huge, colossal, gigantic, etc. It is often used in a superlative manner.

A true blue aussie, loves everything australian and is everything australian.

This means you are omnipotent. Being called Mackas means you are a very superior being.

1. A versatile adjective for anything that is extreme
2. Noun, a fat person
3. Adjective for when you feel fat

A McDonald's restaurant. Also written "Macker's", and possibly "mackaz" in New Zealand.