Definitions by Jackatee

Siamese Sinus Flush 

When a female puts her nostril on the males urethra and the male urinates and the urine goes up one side of her nostril and comes out the other side, therefore creating the sinus flush.

“Wow, did you hear John gave Becky a Siamese sinus flush?”

Siamese Sinus Flush by Jackatee March 20, 2021