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The act of smearing Marmite on your balls, for your dog to lick off!
Guy 1: I had a Marmite Dog last night.

Guy 2: what the hell are you on about?

Guy 1: Yeah! I smeared Marmite on my bollocks while I was whacking off, then I got the dog to lick it all off!
by Nerofalco1 April 28, 2011
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