Knockout

{{Recurring Competition }} {{PAGENAME}} is a recurring Power of Veto and Head of Household competition.
 * image= [[file:Bowlerina.jpg|225px]]
 * description= Spin around to lower a barrier to roll down a set of pins.
 * seasonsappeared=Big Brother 8 (US) Big Brother 9 (US) Big Brother 10 (US) Big Brother 11 (US) Big Brother 12 (US) Big Brother 13 (US) Big Brother 14 (US) Big Brother 15 (US) Big Brother 16 (US) {twice) Big Brother 17 (US) {twice) Big Brother 18 (US) Big Brother 19 (US) Celebrity Big Brother 1 (US)