"zhen shi bai" = "zhen1 shi1 bai4" OR "zhēn shī bài" (with the respective "tone" on each word) =「真失敗」(traditional) OR「真失败」(simplified), which means: "What a (real) failure!" --- 祝　是日安好。/ Good day.

DO YOU MEAN BY "真是白"? IF YES, I THINK IT WOULD POSSIBLY BE "真是白癡!" 白癡 = DUNDERHEAD, BIRDBRAIN, IDIOCY, MOONCALF, CHUMP....ETC. "癡" IS CROSSED OUT TO MAKE THE SENTENCE LESS OFFENSIVE. AND THAT IS TO SAY "WHAT A(N)......!" IF NOT, PLEASE PROVIDE US WITH YOUR FULL CONTEXT.

Eliot is right. “真失败”： such a loser!

Do you mean 真失敗？ = thrashing