I lied/ the slip of my tounge.

I learned that Americans say " I lied." when they said something
wrong in a book.
Can I say:

It is just the slip of my tounge?

Which one is used most often by American?

[Tdol]

A slip of the tongue is not the same as a lie; it is when you say something accidentally, either using the wrong word or saying something buy accident that you were not meant to say.

Originally Posted by tdol

A slip of the tongue is not the same as a lie; it is when you say something accidentally, either using the wrong word or saying something buy accident that you were not meant to say.

The situation is:

I am a waiter. I brought one customer's to-go order out and told
her "here is your sweet sour chicken." ( what I wanted to say is pork.)

"Chicken? It should be pork." she said.
"Oh ,I am sorry. It is pork. "

"Your sweet sour chicken is $7."( I slipped my tongue again.)
"That should be pork." She looked upset.

"XXxxxxxxxxxxx." (what should I say here? ) <Can I say I lied?>

Originally Posted by zhengl_2000

The situation is:

I am a waiter. I brought one customer's to-go order out and told
her "here is your sweet sour chicken." ( what I wanted to say is pork.)

"Chicken? It should be pork." she said.
"Oh ,I am sorry. It is pork. "

"Your sweet sour chicken is $7."( I slipped my tongue again.)
"That should be pork." She looked upset.

"XXxxxxxxxxxxx." (what should I say here? ) <Can I say I lied?>

[twostep]

Originally Posted by zhengl_2000

A slip of the tongue is exactly what it says. Something "escaped", something was said that was not intended to be said.
A lied is intended misinformation.
You will hear the word fib. A fib is a small lie, a little adjustment of reality.

In the example of take-out food I do not think the word lie applies. I would call it miscommunication.