A complete douchebag who likes to suck dick. When a good looking dude walks by, it looks like John Stamos and Jaime Lee Curtis had a yogurt fight in his pants.
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.