1 definition by ski1986

Top Definition
A sex move when you cum into your partners rectum (gay or straight) and in return you lay on your neck with your butt up as they stradle you and proceed to push your cum from their rectum into yours.
"That girl is a total freak. In bed last night she asked if we could do the Hour Glass, So we did. It was one hell of a time."
by ski1986 June 17, 2012

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