Well as long as it doesn't turn out to be a heavy-set dude wearing a hockey mask and brandishing a meat cleaver - else you might have to re-evaluate your definition of 'fun' in this instance.
I think it is also fair to say that if "Hey xxxxx, I see we've been matched on Tinder - where shall I book for the wedding?"...... is an example of a good chat up line then someone is sadly delusional. But to be fair I shall ask some of my gransdsons many young lady freinds and see if any of them are impressed with this line.
My advice to everyone using Tinder: Delete it, for good, never look at it again. You can thank me later, maybe...
What I always failed on, chat up lines, never had any... Worked out somehow in the end, but it took ages. What, people looking that OLD use online-dating?
I got chatting with a bird on Tinder last year. Her pic was cute so I went with it to begin with, but within about 12 hours she'd sent me a message that just said "What are you doing?" and I deleted it immediately afterwards. It felt like she'd already become dependent on me... after 12 hours. Tinder may or may not be a useful way to score a cheap lay, but I would have misgivings about using it for anything else.
Bad chat up lines are brilliant. Delivered skillfully, few things are as effective and they have the added bonus of instantly weeding out the humour vaccums.