RU4 

Are you for real?

Chad: I'm going to see that Disney flick with my mom.

Brent: Shwa? RU4???

RU4 by JM_Justin June 30, 2009

ru4rl 

A variation to o rly, ru4rl is internet slang for "Are you for real?" It has many meanings, but is primarily used when a piece of bad or good news is given, and the other person thinks it is some sort of tease.

"Whoa, goatse.cx is now a church site!"
"ru4rl"

ru4rl by nickelleon May 1, 2006

Ru469 

A polite asking for a sexual position

Are you for the position of 69

Ru469 by leach man October 31, 2003

ru429

To decipher, just look at your phone keypad to spell out the numbers! Translation, are you gay?

Dude... ru429?
Wow.. this place is just so 429!
Don't touch me.. what, R u 4 2 9?!

ru429 by Christian "Shaggy" V. October 16, 2005

RU469 

Birth control taken orally...if you know what I mean.

RU469 won't abort a pregnancy, but it can prevent it.

RU469 by Hairy Psalm December 12, 2008