In tournaments, the robot judged as very poor (simply the worst of all the entries) is often refered as SFTW. Mainly used for just one robot, but it is not uncommon to see two or three bots dubbed as SFTW's.
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Now, the bot judged as the worst entry of a tournament is often referred as the Spinner from the West (SFTW) of the tournament.
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The term "SFTW" is becoming very popular right now - it is used in every tournament at least once. A few demotivational posters and captioned pictures do include SFTW, mainly used as a mark of fail.