look up any word, like blumpkin:
 
1.
is a guy\girl lashing out (mostly online) at someone\some people who didn't wrong a person directly after he\she assumed them to be the ones who did wrong him\her (ofc the one who DID wrong him\her didn't mention their country or the guy\girl didn't bother to see it) as they are traditional enemies, the offended party then retalites at their most likley... happens a lot on youtube.

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Gaza video on Palestine vs Israel on youtube showing lots of people die.

Mark (Germany) : i think Arabs aren't the ones at fault here, the Israelis started to attack first, this is the video showing it link to another vid

Natasha (Israel) (thinking Mark is an Arab and Rashly attacking him = RashOut) : YOU ARABS ARE TERRORISTS, YOU WILL ALL BE KILLED

Mustafa (Palestine) : F*** YOU NATASHA, YOU ZIONIST CRIMINAL, WE WILL KILL YOU ALL

Mark (Germany) : errr .. what just happend, i didn't mean for it to go this way guys >_> ?
by Me.Him.Them September 14, 2009
3 0
 
2.
verb to eat shit, crash, or wipe-out while biking, skiing, or boarding. often results in road rash or other painful injuries.
"holy shit bro, that dude just totally rashed out so hardcore."

"woah man, did you see me rash out?"
by gabgurl April 23, 2011
1 1