culero

Etymology
From.

Adjective

 * 1)  ugly, lackluster unpleasant or possessing bad quality

Noun

 * 1)  a mean or bad person, a person whom the speaker dislikes: an "asshole"/"arsehole"
 * 2)  coward
 * 3)  a homosexual person
 * 4) drug mule
 * 5) sluggard
 * 6) diaper, nappy

Usage notes

 * Although in some contexts, , , , , , , , and  may be synonyms, in most contexts they have a different degree of intensity, with zonzo having the mildest connotation, increasing in intensity in that rough order, to estúpido and pendejo, which have the most offensive meaning.