What is Silverdale Slick Dick?
1.
a rare, probably never been done sexual manuver when the guy is fucking a girl in the ass 
person 1"dude dan was fucking sandy last night and he pulled off a silverdale slick dick"
person 2"no way, that shit has never been done"
See 
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The filming procedures and the production of a personal DVD with video/photography skilfull techniques that make the moments unforgettab.. 
1. 
When one and another person yawn at the same time.
We just entangleyawned!
See entangleyawn, yawn..