have no idea
Definition of have no idea
1 : to not know or understand I have no idea what you're talking about.
2 —used to reply to someone as an emphatic “yes” “Was it hard?” “You have no idea (how hard it was)!”
Word by Word Definitions
: a transcendent entity that is a real pattern of which existing things are imperfect representations
: a standard of perfection : ideal
: a plan for action : design
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