water-breaker 

A penis so long and large as to elicit the fear of uterus penetration, even in non-pregnant women.

She's too petite to sleep with you and your water-breaker. That girl wouldn't walk right for a week!

water-breaker by Dusticles McGee July 29, 2007

Waterbreaker 

When u take a truly great dump, and when you get up to wipe your ass you notice that the pile is so big the top is higher than the water in the bowl, like an island 'breaking' above the water.

He: "Man, I ate so much Thanksgiving dinner yesterday I woke up at dawn and had me a righteous waterbreaker."

She: "I hope you flushed."

He: (Proudly) "Twice!"

Waterbreaker by polkyarebusz June 12, 2006

Waterloo Waterbreaker 

When you pick up a drunk pregnant woman and take her to an alley and fuck her in the ass. Just as you are about to cum you put your hands over her vagina hence creating a vacuum in her vagina. The instant before you bust you release your hand causing her water to burst, the baby to be born and you to ejaculate upon it simultaneously. Then you stab her and raise the baby as your own.

Patrick: Yo, I gave that bitch Hang a serious Waterloo Waterbreaker last night. Now I must raise her son...

Waterloo Waterbreaker by Devacurrent Motor August 6, 2008