As a noun barspin is
a bmx bicycle trick in which the rider whips the handlebars around while in the air and then catches them while still in the air.
bmx
English
Noun
(
wikipedia BMX)
(
-)
Bicycle motocross, a form of cycling on bicycles with 20-inch (508-mm) wheels, originating in California in the 1970s.
barspin
English
Alternative forms
* bar spin
Noun
(
en noun)
A BMX bicycle trick in which the rider whips the handlebars around while in the air and then catches them while still in the air.