1 definition by Jane Porter

Top Definition
RO
1. Random outburst.

2. Uncontrollable outburst of amusement (usually in text form)

3. Used when LOL or LMAO isnt enough
In text conversation:

Kim: I wore a dress over py pants today
Laura: What?
Kim: Yeah I thought is was a shirt
Laura: RO!
by Jane Porter December 04, 2009

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