You learn fast.

Whereas slow death would be a collocation haha

Ok, so something like “slow mountain” would not be a collocation, because it’s not common. 

Undisciplined

Adjective-noun pair
Noun-noun pair
Verb-noun pair

Collocations just mean words that are often used together

cryotosensei

Stacker Saloon

saloon

Nice. I don’t think “collocation” is a common term in English grammar, at least in America. 

Is it just an adjective-noun pair or is it more specific? I think I’ve seen it before, but I don’t remember for sure. 