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.
The dance that epitomizes the 1920's is the Charleston. The Charleston was introduced to the public in the Ziegfield Follies of 1923 by the all black cast Afro-American Broadway musical Running Wild, and became so popular that even today, it is still a symbol for the 1920s Jazz Age.