A sunburnt foot is the area on the back of people that is inflexible and reached with great difficulty when one wishes to apply after-solar exposure cream. In elderly people it is often known as the sunburnt yard.
dude1: 'Heeeeey, you know what they say about people with a big sunburnt foot?'
dude2: 'Hell yeah..."
dude2: 'Hell yeah..."
by wise_spatula January 23, 2012