I'd fap to that - You're basically saying you'd jerk off to that thing, like i

You're basically saying you'd jerk off to that thing, like it's the only thing keeping you from going insane.

I saw my neighbor's kid walking to school and I'd fap to that.

That guy in the bar had a six-pack and I'd fap to that.

I saw my brother's girlfriend and I'd fap to that.