Someone who is a pothead will smoke marijuana on a regular basis, and they are constantly under the influence of this drug. Pothead quotes show that these individuals often suffer from memory loss and slow thinking due to the drug abuse that they engage in. If you know a pothead then you understand that these people are usually off in their own world most of the time, and they may pay little attention to what is going on around them. Marijuana has a number of adverse effects on the brain and body, and it can be a gateway drug. If you are a pothead then you need help for your chronic substance abuse or else you will not be able to get your life back on track.