Blood sweat and tears?

is there a phrase blood sweat and tears? what does it mean exactly?if its effort what does tears stand for
Blood sweat and tears?
This was from a speech by Sir Winston Churchill and referred to the rigors of WWII which the British were going through at the time.
Blood sweat and tears?
yes
Reply:obviously it has its own different meanings and interpretations by everyone. but for me, the "blood" and "sweat", stand for hard work and perserverance in dealing with the hardships of life, and the "tears", come over as happy tears, when youve finally reached success, and a higher place where you can somewhat feel complete. Thats my view.
Reply:I don't think the tears stand for happiness. I think they stand for sacrifice, frustration, emotional investment in whatever you are expending your blood and sweat to work on.
Reply:yes, that is a phrase. it basically means you put your all into something. like for instance i'm a college cheerleader at a very competitive cheer program. we've won nationals several times in the past few years. so we're really serious. nationals is in less than a month and i broke my thumb last week! my doctor wants to put a cast on it, but this is my last ever nationals and i want to compete. i don't have time to put a cast on it. so i'm just going to suck it up until after nationals. someone might say i put my "blood, sweat and tears into it."





but it doesn't necessarily have to do with a sport. it can mean anything you put all of your effort into. maybe someone puts their "blood, sweat and tears" into their job.
Reply:You get a better feel from a little longer quote from Churchill's speech, upon taking charge of an England that was losing badly in the early months of WW II:





I say to the House as I said to ministers who have joined this government, I have nothing to offer but blood, toil, tears, and sweat. We have before us an ordeal of the most grievous kind. We have before us many, many months of struggle and suffering.