When a persons ass is so awkward looking, and miss shaped that it resembles half of a sandwhich or in teenager slang "half a sandy".
(person C walks by)
person A: oh shit look at that ass looks like half a sandwhich.
person b: HALF SANDY
A & B : giggles.
poor person C, they dont even know what it means. lawl. : )
by $$DOLLADOLLAHUSTLAS$$ June 12, 2009
Get the half a sandwhich mug.