1 definition by Catfox

Phrase of encouragement used by semi-fat chicks that attend an all-womens gym. (or eat Special K breakfast cereal)
An advertisement comes onto the television showing a group of semi-fat chicks laughing, mid-high five with the phrase "You Go Girl" - advertising an all women’s gym, where the cuddly women can feel comfortable.

OR

A Special K advertisement showing a group overweight women on bicycles, laughing and encouraging each other to “push on” – You Go Girl!
by Catfox March 15, 2009
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