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1 definition by LtColDavis

 
1.
Atrainasaurous is an ancient haxor dinosaur who roamed video games of all kinds and throwing his hacking powers upon them. Also derived from the english word "Atrain"
"Dangit Atrainasaurous just killed me with his hacks again"
by LtColDavis June 04, 2009
2 1