1A name used for the eighth note of the scale in the tonic sol-fa system, being an octave higher than doh.
2Scottish and Irish English used figurative (especially in "up to (also at) high doh" and variants) to denote a state of extreme agitation or nervous excitement.
Origin
Mid 19th century.
Definition of high doh in US English:
high doh
noun
1A name used for the eighth note of the scale in the tonic sol-fa system, being an octave higher than doh.
2Scottish and Irish English used figurative (especially in "up to (also at) high doh" and variants) to denote a state of extreme agitation or nervous excitement.