–noun; from alternat(iv)e + vacation
1. the act of visiting someone whom you normally avoid due to their excessive drama:
Last year we went to Disney World, but this year I enjoyed an altercation with my mother where she complained the whole time about how I don't visit her enough.
2. the time spent with someone who causes you grief, anxiety or excessive agitation when you could have been spending that time relaxing, drinking or something more pleasurable, like having your gums scraped:
The altercation with my sister went as expected after I suggested she behaved like white trash and she took it the wrong way.