What does 'cold' mean? What does 'warm' mean?


Aside from the 8 year old 'hey go open a window' replies; explain a 'cold' sounding cable? A 'warm' sounding amp?

Moreover: do we all assume these are terms we universally nod our heads to in agreement, whatever they are? 
128x128zufan
https://www.stereophile.com/content/sounds-audio-glossary-glossary-b-c
Or....
do we all assume these are terms we universally nod our heads to in agreement, whatever they are? 
Yes. That one.

Indeed, the terms don't precisely adhere to scientific criteria, but it all becomes obvious when you find your ears sweatin' or shiverin'.
Zufan, You are  right! So much for my editing skills.

The first sentence should have read "Cold = decrease.......". 

But the good part of this is I now know at least one person was reading my post. :-)
Cold- analytical, inhuman. Warm- emotional, human.

To state the extreme. Cold is a PA horn speaker and warm is all sound coming from a bass speaker. In hi-fi it's not that extreme but that is the gist of it.