getting my shoulders loose 

A euphemism for masturbation evoking the appearance of the masturbator as viewed while looking through a window, or seen from the waist up.

One would think by the amount of times I've been caught getting my shoulders loose I'd learn to close my blinds at home. NOPE, busted again........At least the neighbor girls had a good laugh

getting my shoulders loose by keepitloose September 18, 2012