A variant of SMH/SMDH, SMSS represents the pinnacle of ignorance. Literally meaning "Shaking My (DJ) Double S SS
The "DJ Double S" is in reference to someone in our group of friends whose ignorance is without rival. Example:
Right before we cheers a shot and pound it, he goes "Hey has everyone gotten their vitimains" and runs and gets his Centrum Men's vitimans.