Originated as a term used to describe pulling a wheely on ones bicycle but has since evolved into a commonly heard piece of street banter.
On seeing your friend on the other side of the street, or perhaps whilst passing in a car with the window rolled down as a friendly rousing gesture shout "Uuuuuuuuup bys!" with raising pitch on the 'up' and even higher pitch for the secondary 'bys'.

by anna apple October 12, 2003
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Bys stands for „bully yourself“ You say it to people that you really dislike like for example Donald Trump. If you tell people to bys you are really hot and awesome.
by bysrobyn October 28, 2021
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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.
by bysrobyn October 28, 2021
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The way Canadians from Newfoundland Mount Pearl basically say *Guys*
“Where ya at there Bys?” <pretty much means “what’s up?”
by TimXMan September 20, 2019
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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!
by October 28, 2021
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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!!
by October 28, 2021
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