A broadcast run of un-aired episodes of a canceled program. Often done before a show is officially announced as canceled.
ABC's New Year's burnoff signaled the show was likely to be canceled.
by okl January 09, 2013
A celebration at the end of a school year that involved burning your essays, tests, etc.
I'm going to have an English class essay burnoff this year.
by 5'11"Racer December 07, 2006