For a man's use on friends girlfriends mostly and your friends of the female gender. Tom and Bob are friends and Bob says to Tom's Girlfriend every time he comes over, "Hey Melissa make me a sammidge!"
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.