A person who talks incredibly fast and / or doesn’t let anyone else get a word in edgewise.

A dude that only talks to you while staring at your tits.

someone who likes to talk to a wall and excommunicate themselves from society

Unaware Dick Talker (UDT) refers to a person who comes across as a jerk when talking but does not realize and is not trying to be mean.

For example, they'll be giving advice while you two are playing a sport, but the way they phrase what they say and the tone of their voice makes you feel like shit even though they mean well.

Another example is when you make a comment in class and then they follow-up on your comment by saying they fundamentally disagree with you. Instead of respectfully disagreeing, their phrasing and tone makes then come off as a total and utter dick.

They are usually condescending and think they know everything and their opinion is superior; however, they are unaware that they come across as a dick and should not be confused with actual dicks.

A person who starts off talking about a subject that they lead you to believe they are well-versed but when probing questions are asked, they change the subject.

When a married man allows other men to penetrate every orifice of his body for sexual gratification. Usually, the married man will use a beard to hit on single gay men and then lure them to his hotel or home. Here he will have whips, lubes, small animals and twinkies to be shoved deep inside his holes. After doing this for years, the "walker" will shave his head in an attempt to become more aerodynamic in the sex swing, thus increasing the thrust during penetration.