This is a channel name on YouTube, google account name, and more. Surprisingly, only one person has ever used this name. And I will not say who, since you could easily guess.
When you go home with a 'lady of the night' and need to rub your fingers on the clam and smell for inspection of quality and freshness.
Hey man, how did it go with Susie last night? . . . "Dude the night was all good until I went Clamdustin' back at her place. That girl was nasty! I walked home with a boner."
Clamdustin' can also be a beautiful thing, but with the right fresh clam.