A play on the word "hungover."
When
one comes home after doing something extremely fun, such as going on vacation or having an adventure, and is simply unable to function as a productive human being in the aftermath of such frivolousness.
Symptoms include lounging about, not getting any work done, wishing to go back to having fun, plotting to skip
work/
school the next day, antisocial behavior, and poor hygiene.
A funover may last between one day and a week, though residual symptoms may continue for up to months afterwards if daily
stress levels are high.
Mom: Shouldn't you unpack your bags from the
trip?
You: *flopped on the couch*
Ugh. No. I can't do anything right now because I'm funover. When can we go back on vacation?