There is also an awesome clan on the XBOX 360 who use this abbreviation as their clan name. They use this simply because they created the phrase and also because they will destroy you at Team Tactical on MW2. This group of players also use the clan name 'Ouch' because you will feel extreme pain after meeting them.
'That other team were real SSBSs'
'I know, they were as useless as a soggy, saggy ball sack without any balls'
Rubbish team: 'Ouch! We lost again!'
SSBS clan: 'That's because you are as bad as a soggy, saggy ball sack without any balls'