Top definition
An activity defined by the desire to exercise and build a rippling set of abdominal muscles that ends instead with the sedentary consumption of junk food.
"Hey man, weren't you suppose to workout today?"

"Well, I was, but I got lazy and opted for a flab workout instead."
by bloomintemp8 October 28, 2011
Get the merch
Get the Flab workout neck gaiter and mug.