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1.
Foods that only contain calories but no additional nutrients like protein, fiber, vitamins and minerals.
Person 1: Would you like some soda?
Person 2: No, that's just empty calories. I'll have juice instead.

Person 1: Want some candy for dessert?
Person 2: Nah, I'll have a baked sweet potato instead.
by areallnamestaken December 07, 2010
9 2
 
2.
A phrase used when the food or beverage offered will not induce inebriation or intoxication. For example, brownies or cookies without marijuana, or a non-alcoholic drink.
Man #1: Hey, want a brownie?
Man #2: That depends, are they "special"?
Man #1: ...No, just delicious.
Man #2: No thanks, empty calories.
by domotomoarigatou November 01, 2009
7 12