(mahjong) all honours: a 役満 (yakuman, “limit”) hand that consists of only 風牌 (kazehai, “wind tiles”) and 三元牌 (sangenpai, “dragon tiles”)

字一色: (mahjong) all honours

lo and behold

to get a big surprise; to be astonished

mahjong

to be astonished, surprised, amazed, startled

to hold, to carry something / to have, to possess / to hold up, to maintain

holding, possession / wear, durability

continuative of 持つ

he / distal demonstrative, something far off removed from both speaker and listener: that / boyfriend