come down

verb
RareNot in standard dictionaries
1

To descend, fall down, collapse.

2

To be demolished.

3

To decrease.

4

To reach or release a decision.

5

To be passed through time.

6

To return from an elevated state of consciousness (especially when drug-induced) or emotion.

7

To rain.

8

To graduate from university, especially an Oxbridge university.

9

Shortening of of come down the (pike, line, etc.) To be about to happen; to occur; to transpire.

10

To behave in a particular way.

#slang