Milkshake party 

when more then 4 men participate in a gang bang with a willing partner. After the last load has been blown inside her/him the participants then pass around the person and share from the filled hole.

Damn your girl was crazy last night! Yeah especially afterwards when we all did that milkshake party and she was still down for it!

Milkshake party by Hef June 5, 2017

Milkshake Party 

When a group of strictly men get together in a house or office space that is devoid of furniture drink each others milkshakes deep into the night. Penetrating each others boundaries and coming to completion after each male has been satisfied.

Strictly Male 1: "Rob is having a milkshake party to celebrate his new business, we should go."
Strictly Male 2: "I'd love to. There better not be any furniture."

Milkshake Party by WimpyWoodles March 4, 2015