screwup

Plural: screwups

Noun

• An instance of bungling; a blunder or mistake.
• the complete mismanagement or mishandling of a situation
  • "a typical bureaucratic screwup"
• A substantial mistake, usually causing problems for more people than just the person or group who made it.
• A person who often makes substantial mistakes; a bungler.
• A person who is mentally or emotionally damaged.

Examples

• Forgetting to play his ’Z’ was a major SCREWUP that cost him the Words With Friends game.

Synonyms

aberration, alcatote, auf, barbarism, bloomer, blooper, blunder, blunderer, blunderhead, boner, boo-boo, botcher, break, bumbler, bungler, butterfingers, chucklehead, clanger, clodhopper, cock-up, dauber, duffer, dumbshit, erroneity, error, fault, faux pas, floater, flub, fluff, fuckup, fumblefingers, fumbler, gaffe, galoot, gaum, gawk, gobaloon, goof, goon, gype, howler, inaccuracy, klutz, lapse, lapsus, lomperd, looby, lubber, lummox, lumpkin, maladroit, mess-up, messup, misstep, mistake, muff, oaf, oopsy, palooka, peabrain, pisher, sad sack, schlemiel, schmuck, screwup, shit bird, slangrill, slip, slip-up, slipup, solecism, spaz, stumble, stumblebum, thinko, trapes, turkey, weapon, wrength, yutz