dead endin'

The common yet very disappointing realization, or point you reach, when you have no more options or ideas. You're tapped out, bushed, done, Finito Benito. You've run out of gas, paint's fallen off the car. You're washed up. Turn out the lights, the party's over.

"Boss, we have been racking our brains trying to come up with a new angle to sell this new shiny thing that all the millennial will clamor for, but we're dead endin' here.