This word can be used multiple ways. 1) as a hype word or to replace the common hype word LETSSSS GOOOO! 2) to greet your friends. 3) to describe if you are feeling happy and excited.
1) "Ayyyye I just scored the winning goal"
" YO THAT'S MY BOI YAGA SHEEP"
2) "Hey YAGA SHEEP"
"Hey yaga sheep my dude what's up?"
3) "How you feeling about the party?"
"YAGA SHEEP man!"