What is Ysw?
1. yeah, sure, whatever. used normally by lazy teenagers who don't really like to listen to annoying parents.
2. yodeling stops walruses, in the case of ignorant teenage boys.
1. Mom: once you're done with the laundry, empty the dishwasher. and don't forget to take out the trash!
Child: ysw, now can I go back to my music?
2. girl: do you know what ysw means?
boy: uhh, I'm not sure, uhh, yodeling stops walruses?