Spanish phrase
No quería decir eso.
Meaning
I didn't mean to say that.
When to use it
It means the speaker did not intend to say that. People use it when their words have hurt someone and they want to apologize.
Example dialogue
¡Te burlaste de mi dibujo!
You made fun of my drawing!
No quería decir eso. Perdón, tu dibujo está muy bonito.
I didn't mean to say that. Sorry, your drawing is very pretty.