When ever a girl will place one arm over her nipples/boobs and the other over her private parts to get somewhere quick if she's naked. Only used to get around house.
"BBW" is an acronym that stands for "Big Beautiful Woman" that arose from the "fat acceptance" movement in the 1980's. Originally, it was intended to helpobesegirls accept that they did not have to live up to societies standards, and that it was "ok" to be curvy. Since it's inception the term has mutated to refer to the the self declarative - "I am a fat whore, I like to get plugged, and I have very low standards".
Rodger : So my buddy Justin answer a craigslist ad for a 25 year old BBW housewife.
Dodger : Really? How did that work out for him ?
Rodger : I don't know dude, but there are some things that you just can't unhear. The jist of it is that he got his penis lost in the folds.