1 definition by Sfaiangel

When a group of friends have a party and someone falls asleep, they place grapes into the sleeping friends ass and wait for them to rocket the grapes out when they fart. A dirty grace is when the grapes are flying.
“Mark fell asleep so we made him preform a Dirty grace. He won’t be falling asleep around us again”
by Sfaiangel June 11, 2019
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