| ball up(expression, goof, err, flounder) |
| blow(goof, err, overestimate, underestimate, flounder) |
| blow it(expression, mistake, blunder, miscue) |
| blunder(mistake, goof, err, overestimate, underestimate) |
| bobble(blunder, goof, err, flounder) |
| boob(mistake, blunder, miscue) |
| botch(mistake, blunder, goof, err, flounder) |
| bumble(goof, err, flounder) |
| bungle(mistake, blunder, goof, err, flounder) |
| cast about(expression, blunder, goof, err) |
| come apart at the seams(expression, idiom, blunder, goof, err) |
| confuse(goof, err, flounder) |
| drop the ball(expression, idiom, blunder, goof, err) |
| err(mistake, blunder, goof, misconstrue, misunderstand) |
| fall down(expression, blunder, goof, err) |
| flop(blunder, goof, err) |
| flounder(goof, err) |
| flub(mistake, blunder, goof, err, flounder) |
| fluff(blunder, goof, err) |
| flummox(blunder, goof, err) |