A dusty luster is a name given to a vagina that hasn't been used in a long length of time.
Dave: "Yo, Kev, I had sex last night!"
Kev: "Sick mate, how was it?"
Dave: "It was good, although, she did have a bit of a dusty luster..."
Because the female had not had sex in a long time, she had quite a dusty luster
When you do cut bar coke off someone’s sweaty balls .
I just did a dusty sombrero in the bathroom with Nick.
Doing the dirty but you are old.
Damn I was workin last night bringing these old folk their meds and they were doing the dusty.
When your opinion is dusy aka a crusty opinion
Dan "I think the Earth is flat"
Kash "What a dusty take"
An old, barely-used, dry husk of a vagina. Pray you never encounter one.
Pat exposed her dusty cunt at the senior center and caused the maintenance crew to emerge with their Hoovers.
1. An increasingly and unbearably slow speed of thought, as a result of a witty criticism so intense said victim is left speechless.
2. A "so's your face" moment.
"Sally totally had a dusty brian when Oliver told her she punched like a little girl."
A dusty little fucker who has problems like a box of old ass crumpets