1 definition by Bazza66998

Not to be confused with a ‘dirty Garfield’, there is no pussy involved with a Dirty Gareth. The Dirty Gareth defines the mutual destruction of two male anuses, specifically describing the act of anal fisting between two similar looking Middle Aged Caucasian men.
See them two men at bar, that’ll be a Dirty Gareth tonight.
by Bazza66998 February 26, 2019
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