Bestility
The new Google Suggest uses some tricky Javascript to suggest popular search phrases as you type. However, Google is obviously filtering out as many “rude” words as it can. Typing “p”, for instance, does not return porn (32m results) but instead paris hilton (~6.5m results). Mind you these are almost synonymous. Filtering is never perfect – look at the problems antispam is having coping with all the possible mutant spellings of V|4gr4. Anyway, you can type as many letters as you want but Google will not suggest bestiality (~2m results). However once you get to “besti” the common misspelling bestility (30K results) pops up. However, Google is not yet filtering felching.