calling a discarded tile to complete a meld (not for winning)
Mahjong term. Refers to claiming a tile discarded by another player to form a meld (a set of three tiles), but not to complete the hand for a win. Distinct from ロン (ron), which is calling a tile to win.
from Chinese fù lù
If you make many open melds, your hand becomes easier to read.
He made repeated open melds with pon and chii.
From Chinese 副露 (fù lù), a mahjong term. The exact derivation is uncertain; the spelling is conventionally associated with the meaning in Japanese mahjong.