Definitions by SeedyRay

Slippery Dylan

The act of tongue punching your grandma, usually unexpectedly.

The other night I walked in on my sleeping grandma and I put my tongue in her anus, in other words I pulled off a "Slippery Dylan".

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When one sticks their tongue inside their nan after she has been ejaculated in, usually by more than one sexual partner.

"A slippery dylsy could be a fun way to bond with your nan" said little jimmy's mum.