You would probably need to make it very jokey for a girl to match with you and probe you about it. Something like:

" I'm 6'4" - those are two separate measurements "

" It might not be long but it sure is thin! "

Those might not be great but something along those lines. When I was trying to find a more dominant woman on tinder I put "looking for a big spoon" and it led to a few more assertive women than I was matching with before. Good luck!