1. When a male has not had intercourse for a long period of time. This is considered to be the cause of a "dusty dick," in which the male's penis is in fact, dusty, from lack of use.
2. To go for a long period of time without intercourse, resulting in a penis covered in dust.
3. To go a long period of time without anything or anyone touching one's penis.
4. A layer of dust covers one's penis boxers. This follows a dry spell.
Maybe, but you're the one with the blue balls and a dusty dick.
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