1 definition by JohnSmithIsMyName

Yeh-pay-is-ma-ti-clesm

A word all the cool kids say.

Means yes to the fullest extent.
Sometimes followed by a half-assed high five or a fist bump.
Jack: Tracy is such a bitch!
John: Yeppaismaticlysm!
by JohnSmithIsMyName November 29, 2010

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