In skateboarding, "tranny" refers to riding on curved surfaces like bowls, half-pipes, and ramps—surfaces that "transition" from horizontal to vertical.

In car culture, "tranny" is shorthand for a vehicle's .

: Grinding both trucks along the metal coping at the top of the ramp.

However, it is important to be aware that outside of specific niche hobbies like skateboarding or automotive repair, "tranny" is widely considered a against transgender people. 1. Skateboarding: Transition (Tranny) Tricks

The phrase "tranny trick guys" most likely refers to the , where "tranny" is a long-standing abbreviation for transition skating .