What is "mindnumbing"

Usage examples of "mindnumbing".

Then at a stroke he blocked both dizzying sight and mindnumbing sound out of his conscious awareness.

There, in the trendy loft offices of LLM lobbyists Ben Lucas and Jon Mendelsohn, we endured a mindnumbing two-hour lecture on the Third Way, “analytically-driven evidence-based decision-making,” a solid wall of New Labour-speak.