S2U
S2U definition by Slang.net
This page explains what the acronym "S2U" means. The definition, example, and related terms listed above have been written and compiled by the Slang.net team.
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S2U means "same to you." People may reply with this acronym after you send them ILU, NJ, TY, or another expression of appreciation, to show their regard for you.
Alternatively, people may also reply with S2U after you insult them, to let you know they don't like you much either. Hopefully, you're kind of the person who is more likely to receive a positive S2U than a negative one.