Bowel infections caused by viruses, bacteria and certain parasites frequently cause loose stools. Viral gastroenteritis, an inflammation of the stomach and intestines, is a common cause of episodic diarrhea.
Yule or Yuletide (Yule time) was and is a festival observed by the historical Germanic peoples. Scholars have connected the celebration to the Wild Hunt, the god Odin, and the pagan Anglo-Saxon MÅdraniht. It later underwent Christianized reformulation resulting in the term Christmastide.
yuk it up (not the same as yuck it up which means to mess it up/dirty up or make a mess of grossly) is a verb/an action word. dates back to probably before my grandparents era (early 1900's)