a- A rude term given to anyone who can be considered an asshole, but given to said person by someone who would like to use something different from the cliche asshole.
b- Someone, most likely a woman, who grabs the penis and yanks on it before or after sex (but obviously not during). Better used as "dickhandler," but can be used either way.
a- "You remember that guy who used to beat the neighborhood kids up? What a dickhandle."
b- "She's wild in bed man- a total dickhandler!"
when you're holding up your phone and making faces at it, as though you are taking a selfie, but you're really taking a picture of the person across from you or the wall or anything else that seems interesting but you don't want to be caught dead taking a picture of.
This action is often made more convincing by wiggling the eyebrows or opening the mouth, to pretend you're trying to get a Snapchat filter to work.