I don't even know what that means
This phrase is tagged to the end of one's speech in order to reveal an
innuendo or undertone. It is expressed with a
wide-eyed expression and a tone of confusion. It is often synonymous with "
That's what she said".Unlike "That's what she said", it is proper for one to add this phrase to the end of his/her own speech, as well as for others to do the honor for him/her.