Sherbert Dance
A ritual dance done to appease Timothy Sherbert, god of brain freeze, so that he may show pity on the dancer(s) and relieve them of their brain freeze. This dance is usually composed of twitching, facial contortion, and hopping. It can also be more organized than that, but, in any case, must be awkward and comical to watch, otherwise, by common belief, it will not amuse Timothy nor earn his pity for one's plight.
"The Sherbert Dance is our only chance for salvation... that, and eating slowly... or just not eating food that's so cold."