goof

v. (Slang) make a stupid mistake, make a mess of; waste time; act in a playful or foolish manner

n. (Slang) stupid person, fool; stupid mistake, blunder

| A goof in film making is an error made during film production which finds its way into the final released picture. Depending upon the film and the actual scene, the goof may have different effects: a loss in realism, an annoyance, or it could just be funny. It is often a type of continuity error. Goofs are also known as "bloopers" or "mistakes".
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Noun
1. a man who is a stupid incompetent fool
(synonym) fathead, goofball, bozo, jackass, goose, cuckoo, twat, zany
(hypernym) fool, sap, saphead, muggins, tomfool
(derivation) sin, blunder, boob
Verb
1. commit a faux pas or a fault or make a serious mistake; "I blundered during the job interview"
(synonym) sin, blunder, boob
(hypernym) transgress, offend, infract, violate, go against, breach, break
(derivation) fathead, goofball, bozo, jackass, goose, cuckoo, twat, zany

n. goof, (Slang) stupid person, fool; stupid mistake, blunder

Synonyms and related words:
asshole, bitch, bitch up, bloomer, blooper, blow, blunder, bobble, bonehead into it, bonehead play, boner, boo-boo, boob, boob stunt, booby, boot, bugger, bugger up, bungle, butterfingers, chump, clumsy, ding-a-ling, dingbat, dingdong, dolt, dolthead, drop a brick, drop the ball, dub, duff, duffer, dumb trick, err, fathead, flub, fluff, fool mistake, foozle, foozler, foul up, foul-up, fumble-fist, galoot, goof up, goofball, goofer, goon, gum up, hash up, hick, howler, jerk, jerk-off, klutz, louse up, louse-up, lummox, lump, lunkhead, mess up, miss, miss the mark, muck up, muck-up, muff, muffer, mutt, oaf, pratfall, prize sap, pull a boner, rube, sap, saphead, sawney, schlemiel, screamer, screw up, screw-up, slip, slip up, slob, stumblebum, stumblebunny