| verb | make a mess of, destroy or ruin “I botched the dinner and we had to eat out” |
| verb | walk unsteadily “The drunk man stumbled about” |
| verb | speak haltingly “The speaker faltered when he saw his opponent enter the room” |
| botcher | noun | someone who makes mistakes because of incompetence |
| botch | noun | an embarrassing mistake |
| bumbler | noun | someone who makes mistakes because of incompetence |
| fumbler | noun | someone who makes mistakes because of incompetence |
| flub | noun | an embarrassing mistake |
| screwup | noun | the complete mismanagement or mishandling of a situation |
| ballup | noun | something badly botched or muddled |
| spoil | noun | the act of spoiling something by causing damage to it |
| spoilage | noun | the act of spoiling something by causing damage to it |
| spoiling | noun | the act of spoiling something by causing damage to it |
| bungle | noun | an embarrassing mistake |
| bungler | noun | someone who makes mistakes because of incompetence |
| fluff | noun | a blunder (especially an actor's forgetting the lines) |
| foul-up | noun | an embarrassing mistake |
| mess-up | noun | something badly botched or muddled |
| fuckup | noun | an embarrassing mistake |
| stumble | noun | an unsteady uneven gait |
| stutterer | noun | someone who speaks with involuntary pauses and repetitions |
| stutter | noun | a speech disorder involving hesitations and involuntary repetitions of certain sounds |
| stammerer | noun | someone who speaks with involuntary pauses and repetitions |
| stammer | noun | a speech disorder involving hesitations and involuntary repetitions of certain sounds |
| falter | noun | the act of pausing uncertainly |