When your ex-girlfriend wakes you up in the morning dressed as a ninja, afterwards she steals your morning paper. Actually no one knows why, she can't read anyway.
E: Dude, i got a japanese surprise this morning.
A: I hope she didn't wore a headband with the word ninja printed on it?
by Antonbabusja March 16, 2008
Get the japanese surprise mug.
Given on someone's birthday, this involves tying down the recipient and attacking them with tentacles shaped like giant penises, followed by urinating on them. While this may sound unpleasant to the average person, there are at least 20 different hentai mangas devoted to this very subject.
Geoff: Happy 22nd, Jamie! Now it's time for your Japanese Birthday Surprise!

Jamie: Japa-what? What the hell are you... oh my god AGGHHHHHHHHH

(screams of agony are heard)
by Jeff Shewer May 18, 2009
Get the Japanese Birthday Surprise mug.