Tsubtsatagilidakeyn is the debut album of the Filipino rock band, Rocksteddy. It has 11 tracks and was released under BMG Records Pilipinas on January 6, 2006. The name is a corruption of Filipino street words "Tsub"(reverse) "Tsa"(obverse) "tagilid"(sideways) and "akin"(It's Mine), implying that the person who said it plays Teks, a card game where one must get the correct side of a flipped card to win.