odaka pattern; tail-high accent pattern
In Japanese pitch accent, a pattern where the pitch is low on the first mora, high on all following mora including the last, and then drops on the following particle. Common in words like 男 (おとこ) and 花 (はな).
The word 男 has an odaka accent pattern, so when a particle is attached, as in おとこが, the pitch drops.
Words with the odaka pattern are hard to distinguish from the heiban pattern when said alone.
Atamadaka (head-high) pattern: high first mora, then low for the rest of the word and the particle. The drop occurs after the first mora, not after the last.
Nakadaka (middle-high) pattern: low first mora, high for some middle mora, then low again before the particle. The drop occurs inside the word, not after the last mora.
Compound of 尾 (o, 'tail') + 高 (daka, 'high') + 型 (kata, 'pattern'). The term describes the pitch drop occurring after the 'tail' (last mora) of the word.