Meanings
How to pronounce "know what is what":
AU
To understand the current situation; to know what is going on.
Example: "He seems to have no trouble understanding stuff that, to me, sounds like hot garbage. He really does know what's what."
Example: "She said she was going to house to study French, but I wasn't born yesterday. I know what's what."
Example: "Everything is changing so fast... I just don't know what's what anymore!"
