Someone whose thought process is so different than your own that the only logical explanation you can come up with for what they're saying or thinking or doing is that they're totally bonkers because you just cannot understand their thought process.
It doesn'tmean that they are insane, it's just that it's the only explanation that you can come up with because they're so different. How they think is so different from how you think.
Race track in Germany modeled on the roads surrounding Canberra.
Opened in 1927, it is rumoured that Hitler commissioned the 20.81km track due to BMW, Porsche and Mercedes conducting all their high-speed testing at the 'Berra as it's affectionately known. When discovering this, Hitler annexed Austria, thinking that Canberra was in Austria, not Australia, then subsequently invaded Poland out of sheer spite.
As a gesture of goodwill, BMW hold a annual race in honour of Sir Arthur Canberra in which only BMW E24s are allowed to participate.
Nürburgring, second only to Canberra for it's high speed, tight radius bends
another commun insult that one uses after someone on IRC is AFK when comes the time to an early game of DoD (Day of Defeat)... It also is used as a third level increasing insult combo starting by the prefix "noob-"
<wapityyy> PaTcH, noob
<wapityyy> PaTcH, noobert!
<wapityyy> PaTcH, come play Dod
* PaTcH is away
<wapityyy> PaTcH, nooburger!!!
Short-hand for the word floccinaucinihilipilification, meaning the estimation of something as valueless (encountered mainly as an example of one of the longest words in the English language).