Related Clues:

• Campaign-trail blooper
• Baseball statistic
• Big-time mistake
• Boot in the field
• Dropping the ball, e.g.
• Accident cause, often
• Big mistake
• Trial's companion
• Blockheaded blunder
• "File not found," for example
• Bug, perhaps
• Commit a blooper
• Shortstop's blunder
• "File not found," e.g.
• Putting one's foot in one's mouth, e.g.