Blood Party
Blood Party is when you are on ecstasy and a girl menstruates on you.
"Hey did you guys end up going to that blood party last night? I was tripping balls on that X and I still have the taste of period in my mouth. Delicious."
Blood party
A party thrown after a pregnancy scare, to celebrate not being pregnant
"If this pregnancy test comes back negative, ill be so relieved well throw a blood party"