Top Definition
1. A penis long enough that it can penetrate both the vagina and the cervix.

2. In anal sex, a penis long enough that it can penetrate both the Anus and the Houston Valves.

Note: If you're a dumb shit who can't figure out what the Houston Valves are, please consult Google.
Black Guy: Double Docker

White Guy: Docker ... hits the G-spot

Asian Guy: No Docker ... she can't even feel it inside her.
by LordofWales August 08, 2010
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