S.S.A.M. is an organization in Pajama Sam 3: You Are What You Eat from Your Head to Your Feet. The acronym stands for Snacks and Sweets Aggressive Majority. They are a group who start conflict on the island due to their beliefs that sweets are the most important and valuable food group.
Sam attends a party thrown by members of S.S.A.M., he accidentally gets himself locked in jail after announcing that he is leaving to go home and have dinner (including broccoli), to S.S.A.M. he is viewed as a traitor and thus locked up.