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1.
a puppet character from a British children's tv programme of the 1950s
we all love muffin, muffin the mule.
by Dunky Oggins October 28, 2003
 
2.
rape cunnilingus, or cunnilingus against the will
Oi kev, stop that at once! muffin the mule is strictly illegal
by theWestHamfan October 26, 2003