What is "eight-ender"

An eight-ender, also called a snowman, is a perfect score within a single end of curling. In an end, both sides throw eight rocks, and in an eight-ender, all eight rocks from one team score points.

Eight-enders are extremely rare in competitive curling and are analogous to a perfect game in baseball or a perfect game in bowling (300). Eight-enders are so rare that the Canadian Curling Association has an eight-ender award to recognize any eight-ender scored in Canada. In 2007 Asham Curling Supplies awarded an $8000 prize randomly to one of the 145 teams that registered an eight-ender in the 2005–06 curling season.

The eight-ender in team curling is analogous to the six-ender in mixed doubles curling, as there is a total of six rocks in play per team instead of eight.