Jizz Lobotomy

While receiving oral, the man (at the moment of climax) pulls out and stuffs the tip of the penis (urethra) in one of the female's nostrils to let the load loose.

Bonus points - Egyptian Lobotomy - Only achievable with an exceptionally thick load...removal of the load looks like a step within the Egyptian mummification in process - pulling out the brain through the nose...