a decreasing coin price is not a dump, nor is a coin price going up anything of a pump! "Pump and dump" are artificially kicked-off moves (and not just any move).
You seem to think using some slang is cool or makes you appear to be a super-hero trader, but when it only shows you're confusing the most basic concepts, then it's not...
Your first phrase should read "when Bitcoin takes a breather" or "goes back/decreases a little" or similar. Instead of that pump you might want to use surges ahead or rebounds because that's what it is: no one has the means to "pump" Bitcoin these days at a marketcap of $50bn and upward (not even on margin with any degree of profit probability)!
RE: Black Friday - Altcoins Off!