a slip of the tongue
Meaning: If you make a slip of the tongue, you make a small mistake when speaking.
- I really meant to say Miss Davis, not Mrs Davis, so it was just a slip of the tongue, but Judy thought I was teasing her.
- A newsreader made a slip of the tongue when reading out the scores. He said Chelsea had lost by a goal, instead of saying they'd won by a goal.
Debbie made a slip of the tongue when she said that