What is Souce?
1 The act of an individual appearing as if he/she hasn't showered for days, ex: dirty nails, unbrushed teeth, oily hair, etc.
2 The act of wearing the same clothes for a period of days.
3 Raggedy-ass appearance
4 Fat and/or extremely plump; verging on obese
"There's this guy in my class, and he's hella soucy"
"Why are your teeth yellow, you're a freaking souce"