(Pronounced "TESHEE") The act of brushing one's hand accidentally against a friends balls. Derived from the Latin "JohnTesh" which describes a sense of general embarassment, disgust and a sickly feeling of malaise. Similar in structure and meaning to the words "Pesci" or "Heche".
Eric accidentally teshied Murray on the way to the market. They both looked down in shame, while Murray got a boner.