lowside1
/ˈləʊsʌɪd/Motorcycling
noun
A type of accident caused by a motorcycle losing traction on a road surface, typically resulting in the rider coming off and both motorcycle and rider sliding along the ground.
Origin
1980s. From lowside, after highside.
lowside2
/ˈləʊsʌɪd/Motorcycling
verb
[no object] Of a motorcycle or its rider: to lose traction on a road surface, especially when cornering, typically resulting in the rider coming off the motorcycle and both sliding along the surface. Also with object: to cause (a motorcycle) to slide in this way.
Origin
1970s; earliest use found in Cycle World. From low + side, after highside.