the more i see the examples offered forth in this thread, the more it seems that "UP" is simply an indicator of anything on the "positive" side of the spectrum; ie -depending, of course, on context - more (speed up, add up), attainment of a goal of sorts (wrap up, finish up, follow up), putting forth (pipe up, cough up, throw up), compliance with an imperative or expectation (shut up, ante up),front or pinnacle (head up, lead up), the state of being contemporary or current (whasssssssssssup, coming up) and even more intangibly indicating a definitive action (used up, broke up).

that being said, i'm wondering if there's a usage of 'up' that doesn't follow this general pattern (or have i simply forced a pattern where one does not exist? it seems clear in *my* mind, but that's not necessarily saying much)

can someone come up with a better explanation?

[wondering-if-tsuwm-would-mind-lending-me-his-ron-obvious-tag-e]