estupar
Estupar is a Spanish verb that translates to "to stuff," "to cram," or "to pack" in English. It is often used to describe the act of filling something completely, to the point where it is difficult to add anything more. This can apply to physical objects, such as stuffing a suitcase with clothes, or to more abstract concepts, like cramming information into one's head before an exam.
The verb is conjugated regularly in Spanish. For instance, the present tense first-person singular is "estúpo,"
The term can also carry a connotation of being overwhelmed or overloaded. For example, someone might say