shrump

From Low German schrumpen, from Middle Low German *schrumpen (attested in Middle Low German vorschrumpen, vörschrumpen (“to shrivel, wrinkle”)), related to German schrumpfen (“to shrivel, shrink”), Danish skrumpe (“to shrink”). Related to English shrimp.

shrump (third-person singular simple present shrumps, present participle shrumping, simple past and past participle shrumped)

1. (dialectal) To shrink, shrivel.
2. (dialectal) To shiver from cold.
3. (dialectal) To shrug (the shoulders).

• scrump
• shrimp
• shrink

Blend of mushroom +‎ hump.

shrump (plural shrumps)

1. (mycology slang) A pile of leaves with a mushroom underneath.
   • 2023 March 19, Katharine Gammon, “Shroom boom: the hunt is on as California rains fuel a mushroom explosion”, in Katharine Viner, editor, The Guardian‎, London: Guardian News & Media, →ISSN, →OCLC, archived from the original on 2023-08-10:

     I bend down to peek at the shrump Starwood identified. From the top it looks ordinary enough, but from the side, I can see a fruiting body is pushing out of the ground.