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1.
This term is used by the British to say Yes or your right
brit 1- 'bout that time chap
brit 2- Right-O
by thomas the train engine November 10, 2006
 
2.
Similar to indeed, this word means nothing when used in common conversation.
"So, you wanna go jump off a cliff?"
"Righto!"
by Coalfire February 09, 2004
 
3.
an agreement to a preceding assertion.
Young: I'm hungry
Val: right-o
by how_do_you_spell_anonimoose July 17, 2005
 
4.
Used when someone tries to make a joke/funny statement/payout, when is isnt funny.

Is interchangable with the sarcastic "Orrrrrite"
Dane: "HAARR! that's what she said"

Harry: "Rightooo..."
by rbrabbit August 22, 2009
 
5.
Fuck you i don't give a fuck what u wanna say but i'll pretend i do.
I heard u liked me Ben.
Righto.
Does that mean yes
It means righto bitch.
by joseph February 26, 2005
 
6.
the opposite of wrongo.
something that is 'right' in its entirety.
'check out the fitty at the bar. He is righto'
'have had a wrong week at work, a night out on the piss would be righto.'
by hannliz March 18, 2006