I would not think so. Best bet, do not believe in superstitions.
it can mean:good luck,bad luck,promising,or a lie when you say something then cross your fingers.
good luck
crossing your fingers represents the snake on a flag pole which is very bad luck.
Actually, it is good luck to cross a white cat.
Crossing your fingers does not cancel a bet. It is purely a superstitious gesture that some people believe brings luck or helps to ward off bad luck. The outcome of a bet is determined by chance or skill, not by crossing fingers.
According to the folklore it is only bad luck if you cross the black cat's path.
-to show that you are going to do your promises -to prevent bad luck
The gesture of crossing one's fingers for good luck is older than one might think: in some pre-Christian European cultures, two people would cross their fingers together as a show of support, teamwork, or mutual well-wishing: very much like the modern handshake. The medieval Christians adapted it as a variation on the sign of the cross, to ward off witches and evil spirits (in the same way that today's crosses can supposedly keep vampires at bay). Over the centuries, 'keeping away the bad' evolved into 'inviting forth the good', and thus was the modern meaning of the superstition born.
Both
don't let a black cat cross your path it's bad luck. don't step under a ladder it's bad luck. don't break a mirror, it's seven years bad luck friday the 13th is bad luck living on the 13th floor is bad luck four leaf clovers are good luck
No no.. Gingers are bad luck!
The gesture of crossing one's fingers for good luck is older than one might think: in some pre-Christian European cultures, two people would cross their fingers together as a show of support, teamwork, or mutual well-wishing: very much like the modern handshake. The medieval Christians adapted it as a variation on the sign of the cross, to ward off witches and evil spirits (in the same way that today's crosses can supposedly keep vampires at bay). Over the centuries, 'keeping away the bad' evolved into 'inviting forth the good', and thus was the modern meaning of the superstition born.