By a slip of the tongue, he used the word "co-terminous"instead of the word"concurrent".
I do not know whether that was a slip of the tongue, but that was what he said.
By a slip of the tongue one can sometimes put oneself in a rather peculiar position.
He is trying to make a point out of a slip of the tongue which has already been explained to him.
I am sure that it was a slip of the tongue when she suggested otherwise.
By a slip of the tongue at one stage he referred to a capital charge.
Was that true, or was it a slip of the tongue?
I thought that it was a slip of the tongue.