(noun) The day after a sickness you contracted has finally subsided, but you are not sure if you should go back to work/school. In essence, a free day where you could go but you "don't think your up to it".
He told me he was feeling better. I guess he's just taking a recuperation day.
What a dickweed: his recuperation day has turned into a recuperation week. I'm stuck with all his work now. Lazy ass bastard.
Someone or something that bites your ankles.
To a postman, an ankle biter is often known as a dog.
To an adult, an ankle bitermay be a toddler.
To hikers, an ankle biter is sometimes a tick.
And so on.