An overly-accentuated libido. A condition in which an individual (typically a male) will engage in a variety of non-normative (and sometimes illegal) behaviors in order to copulate with a female--often in a night club, party, or bar setting.
This condition is sometimes exacerbated by the consumption of various substances, including alcohol or cannabis. In the case of the latter, the condition may be referred to as "Wolf Dick 4:20".
"It's unfortunate that Bob doesn't have a girlfriend--he appears to be suffering from an acute case of Wolf Dick"
"Don't allow Roger to toke that bowl--he hasn't engaged in intercourse recently, and may come down with a severe case of Wolf Dick 4:20"