Noun: an insertion made by a spellchecker, autocorrection, and/or predictive text function in a communication device that reveals a conscious and/or subconscious thought, feeling, desire, etc., unintended to be sent by the messager. From "Freudian slip," where the speaker utters an unintentional subconscious thought/feeling.
The Googlian slip revealed the defendant's possible homicidal tendencies by correcting the word "grabbing" to "stabbing" in his late iMessage to the deceased.