The mints that end up in your hand when you only wanted three or so, but the casing dispensed too many, so you put the excess mints back in even though they touched your hand.
Once an act of tacwash has been committed, the mint-dispensing casing should be clearly marked with the tacwasher's name so that the mint doesn't mistakenly touch someone else's hand (i.e. eww).
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 man will 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"