On gloss:

bu'oi
Interjection: Boo!
ui'o in sense "UI; opposite of cheer"
cheering/clapping/congratulating/adulation/bravo/praise - neither favorable nor unfavorable judgment - booing/hissing/jeering/disfavor

In definition:

likse
x1 is a x2y, a x2boo, a x2ums (diminutive)
a'u'u (exp!)
attitudinal: peek-a-boo!