Save and share the most unforgettable quotes from friends, family, loud strangers on the bus, your next door neighbor, your 5 year old kid, etc. etc.
Create groups to share quotes (or just keep it to yourself as an area to store your own quotes). Invite your friends to the group and start quoting them! You can react to quotes, speak the quotes out loud, and order physical items with the quote printed on them (like mugs, stickers, etc.).