When the manejaculates up the girl's nose, the semen accumulates so much that it oozes out of her tear ducts. If it doesn't ooze out right away, the manpunches her in the face to induce crying.
Cory: "Oh yeah, here it comes, where do you want it?"
Topanga: "I feel like being kinky...why don't you give me a Tear-jerker?"
Cory: "Oh ya...that's SO hot."
*Cory ejaculates and makes high-pitched orgasm screeches*
*Topanga makes snorting sounds*
Cory: "Hey, it's not coming out of your eyes!"
*Cory punches Topanga in the face*
*Topanga cries cum*
Cory: "Yeah...that's better. By the way, bitch, I got AIDS."
*Topanga cries more cum*