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Someone who looks over his/her shoulder while engaged in conversation with someone in order to find someone better to talk to.
That shoulder surfer i was just talking to wasn't even listening to me!
by _e_m_ April 14, 2006
Someone who constantly looks and points to things on the internet while looking over your shoulder.
Eric: Go to that link!
John: No! I dont wanna look at "2 girls, 1 cup"! Stop bein such a shoulder surfer.
by Thomas Antonacci March 28, 2008
Someone who steals PIN numbers at ATMs or public telephones by looking over people's shoulders while they enter their numbers.
He had a $2,000 phone bill after a shoulder surfer scoped the PIN for his calling card.
by P. Brain August 31, 2006