shoulder looking 

to spot a smokin' chick and position yourself in a spot where she can not see you stare at her, usually a person would pretend to talk to someone to do this.

(Dude spots girl and moves too look like hes staring at friend)

friend: Dude, why are you staring like that?

you: im shoulder looking at the hot chick at your six.

shoulder looking by mysterious Will July 15, 2010

looking over both shoulders 

action. how every black joke starts

John: Hey Joe, how does every black joke start?

Joe: How?

John: (answers by "looking over both shoulders").

looking over both shoulders by Junior, Jr. July 3, 2008