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An mixed alcoholic beverage consisting of

1) Beer mug filled 2/3 full of cheap US beer.

1) Shot glass filled with sake.

Bomb the sake into the beer and chug. The ensuing disgust and humiliation will encourage the individual to join the nearest fight.
Hey bro, there is a fight behind the bar. Lets do a couple pearl harbors and get involved.
by Spencurai May 14, 2010
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50
The act of shitting a floater, then sinking that floating shit with smaller, heavier shits
Nick: What kind of shit did you just have?

Rob: Pearl Harbor!

Nick: I wish I could have see that.
by robiohead February 28, 2011
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51
In reference to a toilet. Due to the fact that most toilets are white like pearls. Also hinting toward the fact that harbors are surrounded by water meanwhile toilets are filled with water.
Example 1. "Dude, I just docked an aircraft carrier in Pearl Harbor."

Example 2. "OMG! I need to get to the bathroom soon, the Japanese are about to bomb Pearl Harbor!"
by Lucarion February 26, 2011
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52
A war that was completely seperate from world war two.
"Oohhh i thought that was a whole different war!"
by Jo' Mama May 16, 2003
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53
A sneak attack, similar to a "cock block", but instead of preventing someone from getting lucky, the perpetrator of the "pearl Harbor" maneuver is trying to steal the person away.
Male #1 is trying to make a move on Female #1, but due to much fluid consumption, must depart and use the restroom. In Male #1's absence, Male #2 moves in and makes his move, thus committing the terrible crime known as "The Pearl Harbor"
by $witchm@$ter March 31, 2008
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54
1) To catch an unsuspecting individual(s) by surprise
2) To catch someone on a lie and expose them when they least expect it
"They all think I don't know anything, wait until I Pearl-Harbor their asses."
by KURUMA February 01, 2017
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