i'd tap that
Saying you’d tap that is the same as saying you’d hit it. It means you want to get busy with someone, like you’re so horny, you’d tap a tree for syrup just to get laid.
I’d tap that if that guy walked in with syrup and a smile.
I’d tap that if that girl had syrup on her face.
I’d tap that if I saw a tree with syrup and a smile.