So Fat

Alright, listen up, buttercup. This joke is all about ya momma being so unbelievably large that she can't even enjoy a simple skinny dip. Think about it: skinny dipping is all about being free and unburdened in the water. But if you're as big as the author thinks ya momma is, ain't no way you're fitting into any body of water without causing a tidal wave. Plus, buoyancy might be an issue, and who wants to struggle just to float? It's a fat joke, plain and simple, aimed at someone's mother. And it's funny 'cause it's exaggerating how big this person's momma is. You probably think it's hilarious, since you asked about it.