come over

1.  Change sides or positions, as in He's decided to come over to their side. [Second half of 1500s]
2.  Happen to or affect, as in Why are you leaving? What's come over you? or A sudden fit of impatience came over her. [First half of 1900s]
3.  Pay a casual visit, as in I want to show you my garden, so please come over soon. This usage employs come over in the sense of "crossing an intervening space" (from somewhere to one's home). [c. 1600]

The verb has one meaning:

Meaning #1: communicate the intended meaning or impression
  Synonym: come across