66 it

It means to disregard something.

"Do you want to pull that guy over?"
"Nah, 66 it."

Sucking zone

The point at which one vehicle "punches a hole" in the air for another vehicle behind it, thus lowering the air resistance for said vehicle and propelling it forward at a faster rate. This zone is informally known as the "Sucking zone."

In various racing sims, this zone is typically reached when a vehicle is at minimum 0.600 seconds behind the one in front.

"Dude, how are you going to fast?"
"I'm in the sucking zone!"