Dig yourself into a hole

给自己挖个坑，跳下去就真的上不来了。英文用这个短语形象地比喻让自己陷入困境，难以逃脱。

例：Stop trying to justify yourself! No one believes you and you’re just digging yourself into a hole.

别再撇清自己了，没人相信，你只会越描越黑。