It's a scaly genital organ
that grows between his SHOULDER blades.
The Big Bang Theory Season 8, Episode 8
SHOULDER in-in the shower
and Sheldon
The Big Bang Theory Season 12, Episode 24
...holding your dislocated SHOULDER.
The Big Bang Theory Season 3, Episode 16
Shoulder, legs.
Game of Thrones Season 1, Episode 4
really not her SHOULDER.
The Big Bang Theory Season 7, Episode 23