Have a look at this brilliant video by Terri Timely (Who has also directed videos for Modest Mouse, Joanna Newsom and some other bands we’re not sure about), an ingenious piece of film that made us dig into just what the hell Synesthesia is. First port of call was Wikipedia, which went some way towards explaining the video but also made us look a bit deeper.
Essentially, its the interesting bit about being off your tits on Aciiid. Being able to see sounds, taste colour, hear smells and apparently, some people get this all the time, acid or no acid.
Mental. Anyway, if you cant be bothered reading about it you can listen to a mildly grating chick describe it to you here