n.
1 Brit. colloq. (in certain set phrases) fellow; person (clever dick).
2 coarse sl. the penis.
Usage:
In sense 2 usually considered a taboo word.
Etymology: pet form of the name Richard
2.
n. sl. a detective.
Etymology: perh. abbr.
3.
n.
Phrases and idioms:
take one's dick (often foll. by that + clause) sl. swear, affirm.
Etymology: abbr. of declaration
Useful english dictionary. 2012.