https://en.wiktionary.org/wiki/chossy

Adjective

chossy (comparative more chossy, superlative most chossy)

1. (climbing, of rock) Unsuitable for rock climbing, e.g. because it is too soft, unstable, or overgrown.

Hallo me-just-me, willkommen im Forum!

In Deinem Link steht loose terrain, loose and friable rock.

Das wäre lockeres Gestein, bröckeliger Fels. Zitate und Bilder in Google passen dazu.

Falls Du einen Neueintrag vorschlagen willst, gibts hier im Forum user guide eine Anleitung: https://tdict.leo.org/pages/forum/ende/manual... #7

Beispiele findest Du hier https://tdict.leo.org/forum/previewWrongentry...

Um Missverständnisse zu vermeiden, ist es hier im Forum üblich, in der Muttersprache zu posten.

Dazu auch :

http://www.climbingtechniques.org/climbing-vo...

 Climbing Lingo and Vocabulary

 ... Choss/Chossy- Rock that is not solid and likely to fall off under pressure. Rock like this is chossy. ...

https://www.oed.com/view/Entry/35935787#eid11...

choss

 2. Rock Climbing and Mountaineering. Friable, crumbly, or loose rock, typically considered unsafe or unpleasant to climb. Cf. chossy adj.

1963   A. Greenbank Instr. Rock Climbing vi. 71  The first climb..up broken, vegetation-clad rocks simply used to lead the climber to one hard pitch, and then get him off by another section of ‘choss’.

1975   Sc. Mountaineering Club Jrnl. No. 166. 329  ‘If that's typical of the Taurus Mountains it seems a long way to go to climb a heap of choss’ he muttered.

2014   L. B. Crompton Adrenaline Crush ii. 16  My stomach plummets and I quickly examine the surrounding rock face for other signs of choss.

https://www.oed.com/view/Entry/35712834?redir...

chossy, adj.

Rock Climbing and Mountaineering.

 Of rock, a rock face, etc.: friable, crumbly, loose; consisting of such rock, esp. characterized as unsafe or unpleasant to climb.

1965   Climber Mar. 24/1  We start slithering down, facing outwards, on chossy slabs leading to the rows of cars looking from here like paints in a paintbox.

1984   Sc. Mountaineering Club Jrnl. No. 175. 62  Climb the jamming crack just left of an obvious chossy chimney.

1996   Climbing 1 Feb. 103/2  Beware of its heinous loose approach and wet, chossy rock.

2012   S. M. Green Rock Climbing Utah (new ed.) 488/2  The diverse layers of limestone, at first glance, appear chossy and devoid of good holds.

I'd never heard it either, and I'm BE. It's not in Cambridge, Oxford Learners, Macmillan, Collins. I'm also not a climber (although my husband's a keen climber).

The final sentence in the OED examples comes from Rock Climbing Utah! And I've googled LB Crompton (final sample sentence for 'choss') -- she seems to be a US author.

edit: my husband hasn't heard the word either, and wondered if it was a US term 😂

"choss" erscheint in der Vokabularliste auf dieser Homepage http://www.climbingtechniques.org/climbing-vo...

Choss/Chossy- Rock that is not solid and likely to fall off under pressure. Rock like this is chossy.

Aus dem übrigen Text geht hervor, dass beide Autoren aus den USA stammen.

Spike, my #6 was really a response to #5 questioning whether chossy was in use in AE. I was already convinced by the rest of the thread that it was in use in BE in climbing circles. But the fact that it's unknown outside of climbing circles made me think that perhaps it was also in use in AE, hence looking more closely at the sources of the OED sentences.