输光的英文：
go by the board
pass by the board

参考例句：

He gambled away all his money.
他把钱全都输光。

He diced his fortune away.
他掷骰子把家产输光。

Lose all one's money, esp as a result of gambling or speculation
输光所有的钱，赔光本钱（尤指赌博或投机）

board是什么意思：
n. 板；木板；甲板；董事会；膳食
v. 用板盖上；上（船、车或飞机）；搭伙，寄宿；给提供膳宿

a plotting board
测绘板

They piped the captain on board.
他们以笛声欢迎船长登船。

the board on which backgammon is played.
用来玩西洋双陆棋的板子。

integrated circuit chip board
集成电路片试验板

Square the corners of a board.
使一块板的几个角成直角。

pass是什么意思：
v. 通过；传递；及格；经过
n. 穿过，经过；通行证，护照，入场证

This coin will not pass.
这钱币不通用。

pass a messenger
传递引绳

The evening passed as evenings mostly pass at Italian theatres
那一声过得很平淡，象意大利戏院里的大多数夜晚一样

Jan has passed the ball to the teammate, a wonderful pass.
简把球传给了队友，传得可真漂亮。

You could pass for a teenager. The fake painting passed for an original.
你可冒充十几岁的人。这幅伪造的画被当作真品