Every player takes turns being the artist and the timer. Before starting the clock, the person who is the timer will whisper a word into the artists ear, making sure the other players can’t hear. The artist will then draw the whispered word until the rest of the players can guess what the word is.
Once the word is guessed the timer will count how many 20 second blocks have passed. That is how many drinks the artist must drink. If the group gives up and can not guess the word, the timer must take a shot.