Spontaneous Osteonecrosis of the Knee - SONK. Definition. 1  A condition of unknown aetiology characterized by the development of an area of osteonecrosis on the weight-bearing surface of the medial femoral condyle.  First described by Ahlback in 1968.
Funky Chicken may refer to:  1 Do the Funky Chicken, a 1969 song by Rufus Thomas. 2  The Chicken (dance), a 1960s-era American rhythm and blues dance.  Chicken Dance, an oom-pah song.
George calls G.O.B.'s chicken dance a tweety bird dance when he performs it during a Bluth Company softball game. (Switch Hitter) G.O.B. later injures his leg when performing the chicken dance to mock Buster, so he is unable to perform it again when mocking Michael for being too afraid to pursue Sally Sitwell.