[SmG mosesbible2014]

Like, do you just hold a piece of ice in your hand and go "That's ice cold!" or do you need to get a brain freeze or something?

[SmG Just_Ghost]

You have to get a brain freeze

[SmG Patriciocia]

Yeah a brain freeze is the coldest thing in the universe and therefore is classified as 'ice cold'.

[SmG Abi]

a brain freeze is pretty cold

[SmG brandonger]

I would consider it to be as cold as a liquid can get before ice starts forming in it I think. But if we aren't just talking about liquids then I don't know lol.

[Vezzie]

vezzie doesn't get a brain freeze, because he doesn't have a brain! :O

[ItsOrangeRBX]

Probably a brain freeze, only true gamers survive that curse.

[SmG Masty Ludenberg]

nah you need to get first degree frost bite to say its ice cold 

[SmG Shintaro]

That's very COOL

[SmG Walnut Ghost]

Theoretically, 'Absolute Zero' is the coldest you can get when it comes to cold stuff. But, nothing on this planet has even come close to that, so I'd say jumping in a frozen lake should give a good idea to the boldest of questioners.