What is it called when you accidentally say a completely different word than the one intended?

Are you thinking of a Freudian slip?

I think that’s aphasia; unconsciously substituting the completely wrong word.

Brain fart

A slip of the tongue.

It’s aphasia when you are suffering from a brain condition that causes you to lose your ability to write or speak. A small verbal lapse like this isn’t aphasia.

thats called “OH SHIT”

and it happens to me on a daily basis

I’m with Jeruba on this one.

parapraxis OR “A SLIP OF THE TONGUE” IS THE WINNER!

i do this all the time, with names. i call my cat my sons name, or my husband my brothers name…things like that. i get it from my mother.

A freudian slip is “when you say one thing but mean your mother!”

@Kingkamandi I hadn’t heard that one in a penis. Thanks!

Stupidity.

Isn’t there a neurological name for it as well?

Isn’t it called “lapsus”?