sylau can mean 2 things, 'shut yo lyin ass up' or 'shut yo lame ass up'. mosttly depends on the context tho
ex 1,

angel: bro this food so lame

vale: na bro sylau, this shit firee

ex 2,
vale: lol amongus hehe
angel: bro u ain funny, sylau
by nervqusly December 23, 2022
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Sylau means “shut your lame ass up.”
by May 14, 2022
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So if someone is sayin sum lame ahh shi to you in text

Example:"books are good to read🤓" then u say "sylau goofy ass bitch"
by ur localdaddy February 12, 2023
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