To perform anal cunnilingus on a female while reaching around to finger or stroke the clitoris.

The female version of a rusty trombone.
I got a great rusty DJ last night.
by rdj204 June 17, 2009
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Similar to the male equivalent of the Rusty Trombone. However, when a girl does it, it appears as though she is a DJ spinning a record, all the while licking the other girl's asshole!
Dude, I watched some girl on girl porn last night, and one of the girls was playing the part of DJ Rusty Diddles!
by akendall July 12, 2009
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