also: あのよろし
noun
scoring combination of January, February, and March 5-point cards
A specific hanafuda yaku (scoring combination) consisting of the three 5-point (tane) cards from the first three months: January (pine), February (plum blossoms), and March (cherry blossoms).
See also: 出来役
赤よろしは、松に鶴、梅に鶯、桜に幕の三枚でできる役です。
Akayoroshi is a yaku made with the three cards: pine with crane, plum with warbler, and cherry with curtain.
出来役 is a general term for scoring combinations in hanafuda, while 赤よろし is one specific combination.
The origin is uncertain; the name likely derives from the red (赤) poetry ribbons (短冊) on the cards, combined with an old word よろし meaning 'good' or 'excellent'.