whumpf

Etymology

From whump + -f.

whumpf means A dull, soft sound as of something hollow collapsing. Lexicurio rates it Sui generis — a strength score of 100 out of 100.

intj

A dull, soft sound as of something hollow collapsing.

noun

The collapsing of a weak part of the snowpack, accompanied by a whumpf noise and potentially leading to an avalanche.

verb

Of snow: to collapse in this manner.“Avoid convex surfaces, especially on lee ridges; this is where slab avalanches most frequently start. If you observe settling or whumpfing of snow as you travel on it, or if the surface cracks and the cracks spread, […]”