A Van Dyke is what someone gets on their chin while getting t-bagged. When draping your balls across some fine lady's nose, grind the ol' bunghole on her chin and leave a lil' something. Leave her a Van Dyke!
Note: If her eyes are closed and you have a friend nearby, have him take a turn, but don't tell her. Of course, then it will have to be called a Dick Sargent. Hey! I made a Bewitched television show joke!
Debra got a little more manly while getting t-bagged by Ted. He did the friendly thing and gave her a nice Van Dyke to go with her schnozzola! Ted's too hype too wipe, so she got a really good one and was a real hepcat.