Top Definition
When one finally drops a quality hot and steamy log that hangs from ass to toilet water after extreme constipation and does not realize that it has not detached from the anal cavity, causing him/her to proceed with the wiping process, and violently "smash" through the log. It is called a "surprise" because the victim usually responds with "HOLY SHIT!" or "MY BUNG HOLE!" or "DOUBLE YOU TEE EFF!"
1. "I was walking past the bathroom while my brother was taking a shit and I heard the beginning poot but did not here the ending splash that usually follows. I realized what was happening and immediately yelled 'DICK, WAIT!....but it was too late..he had experienced his first Chinese Log Smash Surprise."

2. "After 3 weeks of being constipated I had taken my glory dump, not knowing that the magnificent log had not detached. As I went to wipe (from front to back) I had my 5th Chinese Log Smash Surprise this month!"

3. "After his Chinese Log Smash Surprise, Jim's hand never recovered..."
by Dr. Wack Meehoff May 27, 2011
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