What is the meaning of Come_up?

Used other than figuratively or idiomatically: see come, up.

To come towards, to approach.

To emerge or become known, especially unexpectedly.

To come to attention, present itself; to arrive or appear.

To appear (before a judge or court).

To draw near in time.

To rise (above the horizon).

To begin to feel the effects of a recreational drug.

To arrive at the university. (Compare go down, send down.)

Source: wiktionary.org