feed your head means: Give your brain “food” to learn and gain knowledge. This expression is popularized in “White Rabbit”, a Jefferson Starship song. You may also need to take a lot of drugs. (in Community Dictionary, added by Leia Gordon)

What else does feed your head mean?

  • Doing a lot of drugs or listening to the white rabbit, and following his lead. (in Community Dictionary, added by Tatiana Thornton)