What does IYSS mean?
If you say so
Other definitions of IYSS:
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How to use the term IYSS:
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More slang terms:
Rear Wheel Drive
Peace In The Middle East My Brother Of Another Mother
Catch Up With The Acronyms
another slang term similar to "red neck", often referring to someone from the south of the USA who is ignorant and backwards thinking; usually white and usually racist