Definition from Wiktionary, the free dictionary
speedcuber (plural speedcubers)
- A participant in the game of speedcubing, or solving a Rubik's cube as quickly as possible
2007 October 4, Mike Peake, “Rubik's Cube: Quick-drawing sidewinder squares up for a cubic feat”:
- Dan Harris, 22, is the fastest speedcuber in Britain, which means he can complete the Rubik's Cube in just over 10 seconds.