goof

n.

1. An incompetent, foolish, or stupid person.
2. A careless mistake; a slip.

v., goofed, goof·ing, goofs.

v.intr.

1. To make a silly mistake; blunder: goofed up by turning right instead of left.
2. To waste or kill time: goofed around at the mall.
3. To tease or make fun of someone: goofed on her younger brother.

v.tr.

To spoil, as through clumsiness; bungle. Usually used with up: goof up a job.

[Possibly alteration of dialectal goff, fool, from obsolete French goffe, stupid.]

also goof up

noun

1. One deficient in judgment and good sense: ass, fool, idiot, imbecile, jackass, mooncalf, moron, nincompoop, ninny, nitwit, simple, simpleton, softhead, tomfool. Informal dope, gander, goose. Slang cretin, ding-dong, dip, jerk, nerd, schmo, schmuck, turkey. See ability/inability.
2. A stupid, clumsy mistake: blunder, bull², bungle, foozle, fumble, muff, stumble. Informal blooper, boner. Slang bloomer. See correct/incorrect.

verb

To pass time without working or in avoiding work. bum¹ (around), idle, laze, loaf, loiter, lounge, shirk. Slang diddle², goldbrick. See industrious/lazy.

phrasal verb - goof up

To harm irreparably through inept handling; make a mess: ball up, blunder, boggle, botch, bungle, foul up, fumble, gum up, mess up, mishandle, mismanage, muddle, muff, spoil. Informal bollix up, muck up. Slang blow¹, louse up, screw up, snafu. Idioms: make a muck of. See correct/incorrect, help/harm/harmless.

Blunder, make a mistake, spoil. For example, I really goofed up and got all the dates wrong. This expression emerged in the military during World War II, along with the synonymous goof off. Quite often up is omitted, as in Sorry, I goofed. [Slang; c. 1940]

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Dansk (Danish)
n. - fjols, fjog, tåbe, brøler, bøf, fejl
v. intr. - lave en brøler, lave en fejl, fjolle rundt
v. tr. - jokke i det

Nederlands (Dutch)
miskleunen, blunderen, niets uitvoeren, uilskuiken, blunder, miskleun, high worden (drugs)

Français (French)
n. - gaffe, dingue (fam)
v. intr. - faire une gaffe/une bévue
v. tr. - faire une gaffe, massacrer (qch)

Deutsch (German)
v. - sich einen Schnitzer leisten
n. - Schnitzer, Dummkopf

Ελληνική (Greek)
v. - (καθομ.) κάνω γκάφα
n. - ζωντόβολο

Italiano (Italian)
prendere una cantonata, cantonata, granchio

Português (Portuguese)
v. - cometer um erro tolo
n. - pateta (m) (f)

Русский (Russian)
балбес, ошибка, валять дурака, делать ошибку, быть под воздействием наркотиков

Español (Spanish)
n. - pifia, metida de pata, persona tonta
v. intr. - meter la pata, cometer una pifia, matar el tiempo, evadir el trabajo
v. tr. - estropear, arruinar, hacer un lío

Svenska (Swedish)
v. - göra en tabbe, slå dank, fuska bort, trassla till
n. - idiot, fjant, tabbe

中文（简体）(Chinese (Simplified))
呆子, 傻瓜, 混, 出大错, 打发时间, 弄糟

中文（繁體）(Chinese (Traditional))
n. - 呆子, 傻瓜
v. intr. - 混, 出大錯, 打發時間
v. tr. - 弄糟

한국어 (Korean)
n. - 바보, 숙맥, 실수
v. intr. - 바보 같이 행동하다, 실수하다, 멍해지다
v. tr. - 바보 같이 하다, 실수하다

日本語 (Japanese)
n. - 失敗, しくじり, だまされやすい人
v. - しくじる, へまをする

العربيه (Arabic)
‏(فعل) يفشل (الاسم) الابله, الاحمق, خطأ‏

עברית (Hebrew)
n. - ‮שגיאה טיפשית, טיפש‬
v. intr. - ‮שגה, טומטם (ע"י סמים)‬
v. tr. - ‮קלקל, בזבז זמן‬

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