Term used in a negative context to refer to the band, Van Halen after there lead singer, David Lee Roth left the band in 1985 and was replaced by Sammy Hagar. This is negative because many fans of the band dislike Hagar.
The sammy Hagar is a sex posistion in which the man holds his women like a guitar. Head over right shoulder he "tunes" her nipple whilst fondeling her vaginal area.
Sammy Hagar is a bridge drone troll. He is a complete whiney bitch who is deathly afraid of the success that Classic Van Halen had that he could never live up to. Bluntly put he is just an old angry man who lives in a delusional fantasy world in which Van Hagar sold 20 million more albums than Classic Van Halen. Every time he talks he utters nothing but lies and sounds like a sack of assholes. Bette Midler and Sammy Hagar are the same person.