A wholesomeday hosted each year on October 29th. Whether you're the Griffin getting slapped, or slapping that same Griffin, at the end of the day, no ones actually harmed so don't be a little shit about it.
Person 1 "Hey Griffin! It's October 29th! You know what that means."
Griffin "OW! Haha, I sure do love Slap Griffin Day!"
A trip to a grocery store, convenience store, or gas station for the sole purpose of buying an excessive amount of junk food and sugary drinks, usually with friends. A chud run often happens late at night and ends with everyone involved hating themselves afterwards.