How do I get a spot of wood stain out of a pair of my blue jeans?

if you can't get it out (try alcohol) you could buy a tiny bottle of craft paint in your local craft store the right shade of blue and try patting a little of that over the stain. Once it dries you can never get it out...

Put a applique over it..some thing cute

try Murphys Oil Soap. Dab it on the wood stain and work it in. Wrap he jeans so it is inside and will stay sort of damp. Let sit over night and wash. It usually will take acrylic paint out of clothes.

oh wow, stain stains. But sounds like you'll have a cute pair of painting pants. 🤐

https://www.thespruce.com/remove-wood-stain-2147149

Try using some pure acetone.