/kyübiŋ/
[parallel with 'Tubing']
vi. 1. Hacking on an IPSC (Intel Personal SuperComputer) hypercube.
"Louella's gone cubing *again*!!"
2. Hacking Rubik's Cube or related puzzles, either physically or mathematically.
3. An indescribable form of self-torture (see sense 1 or #2).