I’m known for my lashes, but I have no brows. I may be tied, but never knotted. I live under a roof, or on a shod foot. I’m bitten when I need to be held. What am I?

Riddle: I’m known for my lashes, but I have no brows. I may be tied, but never knotted. I live under a roof, or on a shod foot. I’m bitten when I need to be held. What am I?

Show answer

Tongue.