What is Theopwned?
1.
Concatenation of the name Theo and the popular term
"Doh! I've been theopwned"
See
2.
A reference to the total defeat Theo Archibald usually gets while competing in any game/sport. The defeat is so bad you realize that it's not unlike the many defeats Theo Archibald is known for.
Damn Jason is really good, he Theopwned me hard!