Customers use the term to describe impressive features, such as the quality or capacity of a laptop bag.

The YouTube series "The everyday madness of self-sufficiency" (Der ganz normale Wahnsinn der Selbstversorgung) documents the daily struggles and rewards of independent living. 3. "Wahnsinn" as a Brand or Title Reviews - Skulduggery Pleasant - Wahnsinn | The StoryGraph

The word appears as a character name ("Herr Wahnsinn" in Dune: Awakening ) or a ship name in games like World of Warships .

In modern usage, "Wahnsinn" is frequently an exclamation of amazement or shock:

Phrases like "echt a Wahnsinn" (really crazy) are common in dialects to describe unbelievable situations, such as dramatic events in reality TV.

Influencers use "Wahnsinn" to express gratitude or disbelief at high view counts or community support.

Generally carries a heavier, more grave connotation. It stems from "Wahn" (delusion) and "Sinn" (sense/mind), literally meaning "delusion-witted".