WSB stands for 'Woodley sex beast.' This is a certain disease found among certain boys. You're likely to find that boys with this disease rubbing their private areas on you whilst deep in sleep, jumping on you when you mention certain body parts, and trying to rape you the second they wake up in the morning with their 'morning glory' pointing skyward proudly :)
'He tried to rape me every second of the day... I think he has WSB'