1) British political magazine 2) Design magazine 3) Feminist magazine 
Spare Rib was a second-wave feminist magazine in the United Kingdom that emerged from the counter culture of the late 1960s as a consequence of meetings involving, amongst others, Rosie Boycott and Marsha Rowe. Its first edition was published in June 1972 and some newsagents, including W H Smith, refused to stock it at the time. It sold around 20,...
Spare rib is London Cockney rhyming slang for a lie (fib).