the final nail in the straw

On the hockey podcast, Spittin’ Chiclets, the hosts were discussing the recent firing of the head coach of the Ottawa Senators. The team had lost a game badly to the Vegas Golden Knights, and host Ryan Whitney said that the game was “the final nail in the straw” for the head coach. This is a perfectly formed congruent conflation of “the last straw” and “the final nail in the coffin”, both meaning the event that ultimately leads to the failure of a situation.  As the contributor notes, this is a “relative” of a previously posted malaphor, “the last straw in the coffin”. https://malaphors.com/2012/11/22/the-last-straw-in-the-coffin/ . An unassisted goal made by Adam Jacob, who heard this one and sent it in.