Definitions by CL-Dante

DSI 

DSI stands for "Dick Suck Island". Basically referring to a girl taking a guy to any private place (which is considered to be the "island" to imply a sort of seclusion/privacy) to give him oral sex (blow job) without interruption.

Yeah man, we went upstairs and she took me to DSI

DSI by CL-Dante March 3, 2011