Synonyms of boners

1 Syllable

muff, flub, whoops

2 Syllables

slipup, muddle, foulup, snafu, goof-up, misstep, bungle, flummox, boo-boo, error, blooper, blunder, miscue, gaffe, screw-up

3 Syllables

oversight

5 Syllables

miscalculation