He blind-sided me or took me down for no reason. The phrase is in reference to the Seinfeld episode in which Kramer buys the Commando 450 shower head to replace the low-flow shower head in his appartment.
Kid 1: (talking to girl) You know I play guitar...
Kid2: Yeah, to make up for your small genetalia!
(Later)
Kid 1: (to Kid 2) Dude, you kind of 450'd me back there!
Pronounced "oaked"
Shortslang for "obi wan kenobi'd me."
The term refers to obi wan's great power for mind control. Specifically where he tricks the storm troopers into letting him pass in star wars. So one would use this slang in reference to someone who has tricked you into doing something.