An act performed when the conversation has died down to the point of awkwardness. The act involves positioning your hand between the legs of anyone sitting nearby with a flat palm and slapping the hand rapidly between the thighs of the chosen person. This supposedly represents a Salmon struggling out of water.
Usually screaming "Awkward Salmon" in a slightly deranged voice is acceptable at this time.
This usually serves to make the situation far more awkward than initially perceived.
XXX: Hey have you heard about that... thing i heard.... about?
ZZZ: 'Places hands between the thighs of 'XXX' and begins slapping. '