Ceneque. You're very right, Luis; Since the SAR defines it as bread, piece of bread, i.e., crust or piece of bread, above all the excess and hard; term which in my land of ready and elsewhere also qualifies the person clumsy, few entendederas, silly, Chump, boba and spineless, like you say.
* Only one "like" per meaning and day, the more "likes" the meaning will appear higher in the list