The word "gibbet" refers to a kind of wooden or metal structure used in the past to hang or display the bodies of executed criminals in public places as a warning or punishment. Full definition
Mark was hanged and his body gibbeted, and Phillis burned at the stake, at Cambridge, Massachusetts. (religion.blogs.cnn.com)
After identifying the dominance of penal dissection throughout the period, it looks at the abandonment of burning at the stake in the 1790s, the rapid decline of hanging in chains just after 1800, and the final abandonment of both dissection and gibbeting in 1832 and 1834. (dailyfreebooks.com)
Dorothy Sayers writes: We can not blink at the fact that gentle Jesus meek and mild was so stiff in his opinions and so inflammatory in his language that he was thrown out of church, stoned, hunted from place to place, and finally gibbeted as a firebrand and a public danger. (faith.org.uk)