Synonyms of boner

1 Syllable
muff, flub, whoops
2 Syllables
slipup, muddle, foulup, goof-up, butcher, skinners, bloopers, misstep, bungle, flummox, blunders, bloomers, screw-up, boo-boo, butchers, error, blooper, blunder, errors, miscue, bloomer, skinner, flub-up, gaffe, snafu
3 Syllables
processor, blundered, butchering, processors, oversight
5 Syllables
miscalculation