Trbl is how Frank Caliendo jestingly claims Charles Barkley would phonetically spell his pronunciation of "Terrible" which often sounds more like "Turrible"
That play was trbl absolutely trbl, what a turrible knucklehead, did you go to stupid school or something?
A condensation of both the words terrible and trouble without the vowels. Means both at the same time. Used in online chat channels/forums.
Jim: "I can drive all right when drunk."