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1.
The act of winning an online argument by defeating the oponent on a genuine basis, or deleting them and their comments so as to remove their side of the arguement.

Straussing always results in a win.
I was winning that damned argument until he started straussing the whole thread.
by The Stephen's June 16, 2011
 
2.
The act of dating someone who is much younger, usually the person is under the age of 18.
"dude, Kevin is dating a 16 year old! He's 20!! He's totally straussing!!!
by Advil750 April 20, 2011