when you are so bored and you dont know what to type but come up with spamming your keyboard and your search results are this.
Im so bored so I typed this in my search bar "qwertyuioplkjhgfdsazxcvbnmmnbvcxzasdfghjklpoiuytrewqqwertyuiopasdfghjklzxcvbnmmnbvcxzlkjhgfdsapoiuytrewq"

BYS is the abbreviation for the full form "bully yourself". This term has been created by user "confs4me" with the help of "quackikrew", both on instagram. You can use this term instead of saying "kys" which stands for "kill yourself" if you're trying to be less harsh. "bys" is basically an alternative to "kys" jokes.
bys dad!!

Yo! Why are you being so Sanchir around here.

