When you get drunk, your inhibited subconscious censor gets inhibited and you don't/can't control your behaviour so the factor making you stutter when sober is faded if you are drunk. Better avoid it. At first it helps a lot, but once you get used to it, and YOU WILL get used to it, you gonna encounter opposite effects: trouble sleeping, anxiety and tremor leading to worsening of your speech condition. Source: I was abusing alcohol for 8 years.