Answer by twicejr for How do I discard unstaged changes in Git?

When you want to transfer a stash to someone else:

# add files
git add .  
# diff all the changes to a file
git diff --staged > ~/mijn-fix.diff
# remove local changes 
git reset && git checkout .
# (later you can re-apply the diff:)
git apply ~/mijn-fix.diff

[edit] as commented, it ís possible to name stashes. Well, use this if you want to share your stash ;)