How to recover a dropped stash in Git?

1. Find the stash commits

git log --graph --oneline --decorate ( git fsck --no-reflog | awk '/dangling commit/ {print $3}' )

This will show you all the commits at the tips of your commit graph which are no longer referenced from any branch or tag – every lost commit, including every stash commit you’ve ever created, will be somewhere in that graph.

bash/sh shell users: Version above is for Fish shell, so if you are Bash/SH user just add a $ sign before to the left parenthesis.

2. Once you know the hash of the commit you want, you can apply it as a stash

git stash apply YOUR_WIP_COMMIT_HASH_HERE

Note: The commit message will only be in this form (starting with "WIP on") if you did not supply a message when you did git stash.

Source: View the complete answer at https://stackoverflow.com/a/91795/2510591

Bonus

If you are Fish shell user, you can take a look at GitNow which is a tool to perform faster Git operations and that can also stash your changes for you.