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1.
When you accidentally kill the fun in something.
"It's my Birthday!!!"
"Yeah Matt... You are 1 year closer to death..."
"Wow Ryan... You really Ryan'd that up..."
by MrDarksideJim April 30, 2013
 
2.
Used in video games such as Call of Duty. To be 'Ryand' means to be killed by a tomahawk, throwing knife or a similar projectile from very close range.
Guy 1: Did you see that!?
Guy 2: Yeah bro, you just got Ryand.
Guy 1: If he were any closer to me, I'd have to introduce him to my mother.
by Sypanite December 05, 2012