Cassandra-Obnoxious-Filter names a function, with lambda list (TEXT VOL):
Filter TEXT for obnoxious content. Starting volume is VOL.
Returns multiple values: the altered versions of TEXT and VOL.
If TEXT is in ALL CAPS LOCK COMPLETELY, it will be downcased, but VOL will be increased one level (if possible). If TEXT contains certain common repeated or mistyped punctuation, they will be converted.
Note that this is not a profanity filter. See TOOTSVILLE CASSANDRA-FILTER for that feature.
Defined in file src/cassandra.lisp.