Dr. Bill's post of kinesthesia reminds me of synestesia-- a somewhat rare condition where people experience things with unexpected senses (ie, food has visual appeal, and aromatic appeal, and can be taste sweet, bitter, salt or sour-- and hot or cold-- but for most of us, it doesn't taste square, or pointed, or rounded, or yellow or purple or like a ringing bell, or a clap of thunder! but for people with synestesia -- it can!

googling synestesia will bring up a host of sites.. there is also a book- The Man Who Tasted Shapes.(author ??) about an inquiry into the subject...

people with the condition are said to have enriched our language-- and defined aged, flavorful cheese as "Sharp"-- cucumbers at "green" and other mixed sensation.