expression used to either mock or show little interest, or just plain sound snobby;
<highvoice>OO <lowvoice> yah <bring it up higher at the end>
long O and short yah
> Riley: it was a total [gong show] at that party last night, but the next day was [ballin]'
> Girl -texting friend on phone- : OOyah
> Riley : yeah, so it was pretty awesome and -
> Girl -interrupts; not paying attention-: OOyaahh
> Riley: uhmkay