Idiomatic To emerge or become known, especially unexpectedly.
Unless anything comes up, I'll be there every day this week.
2
To be revealed to have a certain value, quality, or status.
The movie didn't come up to our expectations.
Hey look Ma, I made it / Hey look Ma, I made it / Everything's comin' up aces, aces / If it's a dream, don't wake me, don't wake me2018, Brendon Urie, Michael Angelakos, Sam Hollander, Morgan Kibby, Jake Sinclair, Dillon Francis, “Hey Look Ma, I Made It”, in Pray for the Wicked, performed by Panic! at the Disco:
3
To come to attention and present oneself; to arrive or appear.
At some point in the conversation my name came up, and I readily agreed to their proposition.
Be ready for when your turn comes up.
2 more examples
The proposal came up before the committee.
It is interesting that this argument should have come up at this moment," Mr. Smith adds, "when the subject is being debated so hotly in the field of the petrol-driven internal combustion engine."1951 September, Cecil J. Allen, “British Locomotive Practice and Performance”, in Railway Magazine, page 621:
4
To appear (before a judge or court).
He came up before a judge and was fined a thousand dollars.
5
To draw near in time.
The summer holidays are coming up.
6
To approach a time or scheduled event.
We're coming up on the interview in the last half-hour of the program.
In 1883, the contract came up for renewal, the L.N.W.R. received it, and the City of Dublin Steam Packet Company was set aside. But there was a certain miasma of secrecy about the affair, so that many, especially in Ireland, looked for information and insisted on getting it.1960 May 23, K. A. Murray, “Carlisle Pier, Dun Laoghaire”, in Railway Magazine, page 305:
7
To reach in height.
You have to come up to here to ride this roller-coaster.
He only comes up around this high.
8
Of a heavenly body To rise (above the horizon).
It'll be warmer once the sun comes up.
9
UK, Slang To begin to feel the effects of a recreational drug.
I could tell from her expression that she was coming up already.
10
UK To arrive at the university. (Compare go down, send down.)
I'm gonna pop some tags Only got 20$ in my pocket I'm, I'm, I'm huntin', lookin' for a come up This is fucking awesome2012, Macklemore & Ryan Lewis, “Thrift Shop”: