dumbass

Etymology
. It is likely that ¹ass (= donkey), not ²ass (= buttocks), was the original sense within this compound noun (solid compound or open compound), but neither sense is precluded, and many people today may uncritically parse the term in the latter way, even if it is misapprehensive. Apparent analogy with forms such as and  would naturally lend support to the second parsing. A similar synergy can be seen in the fact that the terms and  originated as literally meaning a cartload and the load transportable by a single donkey (respectively), but probably most English speakers today would assume that their derivation involves the buttocks.

Noun

 * 1)  A stupid or foolish person.
 * The dumbass walked off with my car keys and left me hers.

Synonyms

 * See also Thesaurus:fool

Translations

 * Azerbaijani: gicdıllaq
 * Bikol Central:
 * Catalan:
 * Chinese:
 * Cantonese: 傻仔, 戇鳩, 蠢才
 * Mandarin:, ,
 * Czech:
 * Danish: dummerik, dummernik
 * Finnish:, ,
 * French:, , ,
 * Galician: apirolado
 * German: ,
 * Indonesian:, , , , bahlul
 * Jamaican Creole: half eediat
 * Japanese: ,
 * Malay:, , , ,
 * Portuguese:, , ,
 * Russian:, , , долбоёб , ,  ,  ,
 * Spanish:, , tontón, , , ,
 * Sundanese: goblog, boloho, belegug, talingeuh
 * Swedish: ,

Adjective

 * 1)  Stupid, foolish.
 * That dumbass driver ruined my car!