Areas with dense populations of hippies or hippie-like activities. High Hippie Areas (HHA) are most notably found in cities on the western cost of the United States. Temporary HHAs may be declared in the event of sudden but relativity short gatherings of hippie populous, as in the case of the great hippie flood of 1969 (otherwise known as Woodstock).
by Walker and Texas Ranger June 4, 2011