You're creating compound adjectives and adverbs in some of your examples, not in others. A compound adjective is formed when two (or more) words are used together to describe or modify a noun.
A temporary compound adjective is formed when the two words together assume a different meaning than their separate meanings. Writers who form temporary compounds should generally hyphenate them when they are used as adjectives and appear before the noun. If the compound adjective appears after the noun, hyphenate only if it’s needed for clarity.
Examples of compound adjectives (all hyphenated because they are both temporary and come before the noun): hard-nosed boss, ill-fated voyage, mass-produced shoes, wacked-out psycho, thrown-together salad, up-to-the-minute news--and a no-worry-in-the-world disco song, her suds-sleeked thigh. (Out-of-the-box new would be a compound adverb.)
Have you created a compound, or just put two descriptive words together? To check, see if you can remove either word without making nonsense or changing the meaning of the remaining word. A tall frosty glass of beer still makes sense if either ‘tall’ or ‘frosty’ is removed, while blue-ribbon pie requires both ‘blue’ and ‘ribbon’ and should therefore be hyphenated before the word ‘pie.’
Maryn, who copied and pasted this from something she posted where her kids would see it