No, Thrift. That is a simile and happens to be a description.
If you say noodle- head, then it is okay. If you say use your noodle, then okay too.
But limp as a noodle is comparing it TO a noodle's limpness, and this is not using the word to mean a non-food. It is using a food to compare the subject that already is already probably a non-food.
This post was edited by WM BARR . =ABSOLUTE TRASH at August 24, 2017 11:52 PM MDT