A Nickel or a Dime
Means you're so cheap you'd argue over a penny, or you're giving out tiny bags of weed like it's going out of style.
"You're giving me a nickel worth of weed? That's not even a decent hit!", My friend, after I gave him a tiny bag
"You're so cheap, you'd argue over a penny.", Me, after my brother didn't pay me for my help
"That's just a dime's worth of weed.", My cousin, after I gave him a tiny bag"