Poser - someone who pretends to be something they are not...
Wild Hogs was a comedy movie about rich Harley owners who played like they were bikers and got involved with some real bikers on a gang and the amusement continued. It was a weak movie poking fun at the guys who bought high dollar choppers and Harleys and tried playing like they were 1%ers. Doctors, lawyers, plumbers, and similar who had money and bought bikes when it was fashionable...
Single track - riding trail only wide enough for single file riding...
Binders - brakes
Getting in the binders hard and your tire locks up (stops moving) and things get interesting in a hurry.
Ass, grass, or gas - nobody rides for free