Blow off

Blowoff or Blow(ing) off may refer to:
 * Blowoff valve
 * Blow-off panel, areas with intentionally weakened structure, are used in enclosures, buildings or vehicles where a sudden overpressure may occur
 * Blowoff, a dance event created by musicians Richard Morel and Bob Mould
 * A type of extra sideshow act
 * A type of clown act
 * Hydrodynamic escape
 * Blowing off, slang for fellatio
 * Blow off, slang for flatulence
 * Blow off, in glossary of professional wrestling terms, the final match in a wrestling feud