The act of somebody placing a hand on the opposing shoulder, and then leaving it there, as if fondling their own shoulder blade. People usually shoulder-grope themselves while discussing their accomplishments or positive traits (often with a sentence beginning "I'm pretty much the best..."), and it is therefore regarded as a narcissistic celebration of one's own awesomeness. On occasion, both hands are employed, giving the shoulder-groper the appearance of somebody hugging themselves because they have no friends.

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