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An inferior creature; A failure; An insignificant being
Now look what you did wrong, you stupid teso!
by Hinato January 09, 2009
The equivalent of bro in Hungarian slang. A variation of the word is tesa, which has the same meaning.
The term is also a slang word for sibling.
szia tesó, long time no see!
what up tesa?

This is Ropi, my older tesó.
by The iPwn December 07, 2011