a man's penis

a stupid or contemptible man

anything at all

you don't know dick about this—you haven't a clue!

waste time or mess around

he started dicking around with the controls

(of a man) have sex with

a detective

the local dicks were convinced they'd nabbed a killer

a grizzled ex-cop turned private dick

To see (a person or thing); to look at, observe. Also without object: to look, peep.