I remember this as a medical student game. A ‘scab of dermatologists’; a ganglia of neurologists; a ‘bone of orthopods’; a ‘pulp of dentists’. Sam Shuster’s contribution (from memory…) was: a ‘dementia of statisticians’.
In the Economist, Donald Norbert comes up with one for Economists: a ‘disutility of economists’. (Economist, 7/1/2017)