TSCYB&PTTO2.3K is an abbreviated version of the username TriangleSquareCircleYellowBlue&PinkThreeTwoOne2300. TSCYB&PTTO2.3K is a hidden abbreviated code to TriangleSquareCircleYellowBlue&PinkThreeTwoOne2300. The triangle, square, and circle shapes, the yellow, blue, and pink colors, and the 3, 2, 1, and 2,300 numbers is another hidden code to TriangleSquareCircleYellowBlue&PinkThreeTwoOne2300.