Sos is a
word made in YTP (YouTubePoop) by getting the "so " part of a
word like "sodden" copying it, so now you have a "soso"
sound, then you reverse the second "so" so you have a "Sos" sound. in other words, they're mirrored.
other variables of Sos: Sus, Ses, Sas, Sis, Soos, Sayas, ceec
other NON-Sos variables: Joj, Jej, Meem, Mum, coc, cuc