Green’s Dictionary of Slang

(US) the Haight-Ashbury area of San Francisco.

1967		N.Y. Times Mag 14 May n.p.: [headline] ‘The Hashbury’ Is the Capital of the Hippies.
1979		Ironside (rerun) Ch6, Birmingham AL [WBRC-TV] [She] lived in Hashbury for about a year.