fanny-bumper

fanny-bumper

n. an event that draws so many people that they bump into one another. There was a typically dull fanny-bumper in the village last night.
McGraw-Hill's Dictionary of American Slang and Colloquial Expressions
See also:
  • fettie
  • bluh
  • bousta
  • Hey!
  • lucci
  • horseradish
  • base
  • stir
  • brutal
  • doje