An act of proposing minor irrelevant changes to something just for the sake of having a share in designing it. See the [[http://www.freebsd.org/doc/en_US.ISO8859-1/books/faq/misc.html#BIKESHED-PAINTING|explanation on FreeBSD FAQ]].

This concept is also discussed in this [[http://video.google.nl/videoplay?docid=-4216011961522818645|Google Tech Talk]] video.