1.) Somebody who is a great fan of the band Phish
2.) Someone who, every chance they get, goes to a concert, or listens to music of phish.
1.) My God my little brother is a total Phishead.
2.)EX of Phishead speaking:: Tonight I'm going to my 89th show!!!
by Dee Nizzle October 16, 2004
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A devoted fan of the jam band Phish. Usualy a great person, who likes drugs, Phish and good vibes.
Phishead is to Phish what Deadhead is to the Grateful Dead.
by Dude of Life June 10, 2008
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