it means he is either nervous or unsure, angry, bored or it may even just be a simple habit.
He's hungry
it means he was to f**k you dahhh
It means he realised he was too "forward" by smiling at you, so is now trying to control himself.
In the earlier time (Back when there were no humans to record this) I sign of biting often meant that the male or female was or is breaking up with the partner.
When a man bites my neck, it's an instant turn on. I mean, right now, find a bed. It took me a few years to develop this, as a young woman, I didn't like it. The older I got, the more I enjoyed biting, and being bitten.
They like you
He's hungry
Biting his lip could be a sign of nervousness, attraction, or anticipation. It can be a subconscious gesture indicating that he is feeling self-conscious or sexually interested in the girl he is talking to.
Another one bites the dust
He might be a vampire or he's just weird.
it means he was to f**k you dahhh
It means that he has no respect for woman whatsoever, and I am a guy answering this.
He's just really horny at the time and wants to fool around with you.
How old are you? I mean seriously. And most likely because that is strange.
I think you mean knuckle dagger, and it's like a knuckle puncher ( bronze knuckle) but it also has a small blade on the edge. Leaf Ninja Out! Sincerely, IchigoKitsune95 Knuckle dragger is an insult; it calls a person an ape.
It means he realised he was too "forward" by smiling at you, so is now trying to control himself.
Do you mean the ball joint in an automotive that is connected to the knuckle? Please write to 2459473@gmail.com for answer.