As nouns the difference between ooser and booser
is that ooser is a wooden horned mask used for folkloric and magical purposes while booser is (obsolete) a boozer, toper, or guzzler.
ooser
English
(Dorset Ooser)
Noun
(
en noun)
A wooden horned mask used for folkloric and magical purposes.
References
* http://www.dorsetdorset.co.uk/dorsetfolklore.html