A severe ailment pertaining to a painful foot cramp, and in some cases, shoulder and neck aches/cramps, due to standing or walking for long periods of time, often compounded onto with the scorching heat of the sun. This ailment usually applies to people who go to Universal, due to long lines in certain rides, which requires people to stand for long periods of time.
Ben: Hey man how was your trip to universal?
Erik: It was great, except for when I left with a bad case of Universal Foot.