An acronym for "Start Digging In Yo Butt, Twin." This phrase is useful for convincing your homie to start digging in their butt if you desire they do so.
Guile (from Fortnite): What a beautiful, and American day! If only it weren't for this unpleasant sensation in my posterior.
Ryu (also from Fortnite): SDIYBT
Guile: Ah, yes, thank you, and Shoryuken, my friend!
Sdiybt like its relatives ‘Sybau’ and ‘Syfm’ is an abbreviated sentence that expresses any emotion . It’s broken down version: Start digging in your butt twin ❤️