What does the hint that's cold mean on pocket god?

Answer 1

It's probably referring to episode 29- The Pyg Chill. If so here is the list:

16 Episode Tasks:

1. Visit Ice Island
2. Drop Pygmy in igloo (activate from menu)
3. Fire Pygmy from Igloo (drop 2 pygmies into igloo)
4. Drop Fish in igloo (2 ways here… drop fish in after pygmy and drop fish in without a pymgy)
5. Pygmy Crawls into igloo to eat fish (There must not be a Pygmy in the igloo… to make him leave tap the igloo like knocking on a door).
6. Pygmy crawls out of igloo
7. Pygmy eats fish in igloo
8. Drop two pygmies in igloo to fire one pygmy out of door
9. Pygmy hit by pygmy flying out of igloo
10. Raise the ice monster (activate in menu, flick pygmy on ice rock to make monster rise)
11. Pygmy killed by snow ball (flick pygmies at monster to make him mad and throw snowballs)
12. Defeat the ice monster
13. Flick Pygmy and bounce off ice monster
14. Flick Pygmy and explode on ice monster
15. Flick a Pygmy into the monster's mouth
16. Make the ice monster dizzy