General terms:
* Slip of the tongue: This is a common phrase for a simple, unintentional error in speaking, like saying "I went to the store" instead of "I went to the bank."
* Verbal mistake: This is a more general term for any error in speaking, including grammar, pronunciation, and vocabulary.
* Misspeaking: This implies that the speaker intended to say something else but accidentally said something different.
More specific terms:
* Malapropism: This refers to a word used incorrectly for a similar-sounding word, like "He's a real ignoramus" instead of "He's a real ignoramus."
* Spoonerism: This is a specific type of slip of the tongue where the initial sounds of two words are swapped, like "You have hissed all my mystery lectures."
* Grammatical error: This refers to a mistake in the structure or syntax of a sentence, like "I am going to the store" instead of "I am going to the store."
* Pronunciation error: This refers to a mistake in the way a word is pronounced, like saying "axe" instead of "ask."
Informal terms:
* Freudian slip: This refers to a slip of the tongue that is believed to reveal an unconscious thought or desire.
* Saying the wrong thing: This is a simple and straightforward way to describe any spoken error.
The best phrase to use will depend on the specific situation and the type of error being made.