What is That's What I'm Talking About?
1.
Something you say when you see something really cool, or a hot girl walks by. You can say it even if you never talked about the subject before.
Two dudes sitting around.
15 minutes of silence
Dude #1: "Look at that chick!"
Dude #2: "That's what I'm talkin about!"
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2.
expression of approval or anticipation
Dude 1: "Dude, check out the size of that cheeseburger!"
Dude 2: "Now, that's what I'm talking about!"
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3.
Etymological note: This phrase can be heard in a recording of the (ca.) 1929 Fats Waller song "The Joint is Jumping".
"Get rid of that pistol, yeah, get rid of it... yeah... ha ha... that's what I'm talking about..." (from abovementioned recording, spoken)
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