A form of defecation wherein by forcing a dry, angry log to burst forth from one’s colon, a biblical flood of liquid feces and small food debris gushes forth across the land (or ideally, in the bowl).
After a leisurely Christmas Eve dinner, the Smith family settled into the living room for some warm eggnog. A moment later, a loud “pop!” was heard from down the hall, followed by the torrential sounds of liquid hitting water. “What was that?!” said little Timmy Smith. Grandpa smith simply let out a long sigh, and said “that, my boy, was your father having a Dam Breaker. I had me one of those back in 1973.”
When two smaller uncircumcised penises are locked together using their foreskin and a much larger penis is slammed down on them, breaking them apart and causing them all to ejaculate simultaneously.
Me and the homies got way too crazy last night. It all ended with a Snake River Dam Breaker.