an ever changing concept used often to befuddle friends, describe random objects in order to maintain an inside joke, or anything else very random.
Purple Coobralas often change as they feel like it, changing shape, meaning and connotation.
Oh my GodStephen, I can see your Purple Coobrala! I'm scarred for life - put it away!
Someone or something that bites your ankles.
To a postman, an ankle biter is often known as a dog.
To an adult, an ankle biter may be a toddler.
To hikers, an ankle biter is sometimes a tick.
And so on.
When a manwill search for hours to find something that is laying out in the open on a table. Items are often easily found by a women.
Man: "I have been searching for hours for keys."
Woman: "You mean the ones sitting there on the coffee table?"
Man: "Where?"
Woman: "Right there in the middle of that table."
Man: "oh, must have been Male Pattern Blindness"