Slang for multi-level carpark at Monash University in Melbourne Australia, named so for its similarity to Gargamel's castle on the smurfs.
by Embo September 22, 2005
Get the castle greyskull mug.When an older woman takes out her dentures and then goes down on you. You then pull out and ejaculate all over her face, then you throw her husbands ashes on her face!!!
I gave Elaine a Castle Greyskull last night and she just wanted more but there were no ashes left now we’ll have to wait until Ash Wednesday now.
by anonymous February 21, 2026
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