What is Bw-69?
A "butt wipe" 69. Where, traditionally, the man poops on a rag and wipes it on the girls face. The girl does the same until climax is reached.
"Dude I totally BW-69'd that chick last night."
"Was it messy?"
"Ohhhhh yeahhhhh"
See 69, bw, butt wipe, poop