quadracentifiable
A search engine optimisation competition was held in New Zealand from 19 August 2010 to 28 November 2010. The competition was to see who could get to the top of Google for the made up search phrase "quadracentifiable". This site 636825 was one of the participants. If you look at the letters associated with the number via your phone, one spelling is "mental". I would call it - "lets be mental, and try to get number one for a competition phrase".
6 - MNO
3 - DEF
6 - MNO
8 - TUV
2 - ABC
5 - JKL
SearchMasters entry using the website nzseochallenge.co.nz got to the top and won the quadracentifiable competition.