crosse

fingers crossed

something that you say to show that you hope that what you have just said will happen or be true. Fingers crossed, we'll get the job done in time, but there's still an awful lot to do.

See also: finger

get your lines/wires crossed

if two people get their lines crossed, they do not understand each other correctly. Somehow we got our lines crossed because I'd got the 23rd written down in my diary and Jenny had the 16th.

See also: line, wire