Lets let it flow, I will start (I used these in real life to ex's)
*Your girlfriend is so fat, the only way I can get her into the back seat is to grease her hips and throw a twinkie in the back.
*Your girlfriend is so fat that the only way to get her out of the house is to drive down the street trailing a pork chop![]()
*Your girlfriend is so nasty that she went to a country/western bar and when they said "ho down" your girlfriend hit the deck