dick slack
Dick slack is a noun used to refer to the uselessness of another person. For example, when someone isn't pulling their weight at work, you refer to this as "dick slack". One should never put up with dick slack.
Wow, we really need to cut the dick slack on our team.
Slack dick
noun. 1. A person (male) that doesn't draw up to the challenge of a female counterpart. 2. Impotent
Slack dick: A male tennis player that fails to cover his partner in a mixed double.