Favorite words and phrases

I enjoy language and playing with language. Here are some of my favorite phrases.

biffed it: messed up real bad.
Big <x>: the shadowy global organization behind <x> e.g. "Big Turnip" would be the secret organization conspiring to make you buy/eat turnips
chillin': always-correct response to "how are you doing," even if you are clearly not actually chillin'.
nyap: when pronounced correctly, it sounds like both "yes" and "no."
o dip: uh oh
that's how they get you: that's how Big Whatever gets you.
that's pretty good: that is either pretty good, or alternatively not at all good, depending on context.
y'all'll: you all will (e.g. y'all'll all like this)